115 ref See also Nerve fiber Afferent nerve fiber Motor nerve Interneuron General somatic efferent fibers General visceral efferent fibers References references External links http neurolex.org wiki Category ... . eMedicineDictionary Efferentnerve Neuroscience stub Nervous tissue Category Peripheral nervous ...Infobox Nerve Name PAGENAME Latin neurofibrae efferentes GraySubject GrayPage Image Caption Image2 Caption2 Precursor System Artery Vein Nerve Lymph MeshName MeshNumber Code TerminologiaHistologica 2 00 06.1.00016 In the nervous system , efferent nerves , otherwise known as motoneuron motor or effector neurons , carry action potential nerve impulses away from the central nervous system to effectors such as muscle s or gland s and also the ciliated cells of the inner ear . The term can also be used to describe relative connections between nervous structures for example, a neuron s efferent synapse provides input to another neuron, and not vice versa . The opposite activity of direction or flow is afferent nerve afferent . The motor nerve s are efferent nerves involved in muscular control. The cell biology cell soma biology body of the efferent neuron is connected to a single, long axon and several shorter dendrite s projecting out of the cell body itself. This axon then forms a neuromuscular junction with the effectors. The cell body of the motor neuron is satellite shaped. The motor neuron is present in the grey matter of the spinal cord and medulla oblongata , and forms an electrochemical pathway to the wikt effector effector organ or muscle. Besides motor nerves, there are efferent sensory nerves that often serve to adjust the sensitivity of the signal relayed by the afferent sensory nerve. Etymology and mnemonics Both afferent and efferent come from French language French , evolved ... give an easy mnemonic device for remembering the relationship between afferent and efferent a fferent ... moteur it Fibre efferenti kk nl Efferent sv Efferenta nervbanor uk ... more details
wiktionarypar efferentEfferent is an anatomy anatomical term with the following meanings Conveying away from a center, for example the efferent arteriole s conveying blood away from the Bowman s capsule in the kidney . Opposite to afferent . Something that so Electrical conduction conduct s, see efferentnerve fiber Efferent lymph vessel See also Efferent ducts Efferent arteriole disambig ... more details
Unreferenced stub auto yes date December 2009 Orphan date December 2009 Efferent Coupling computer science Coupling is a Software metrics metric in software development . It measures the number of data type s a Class computer science class knows about. This includes Inheritance computer science inheritance , interface implementation, parameter types, variable types, and Exception handling exceptions . A large efferent coupling can indicate that a class is unfocused. It may also indicate brittleness, since it depends on the stability of all the types to which it is coupled. DEFAULTSORT Efferent Coupling Category Software metrics Software eng stub ... more details
Infobox Artery Name Efferent arteriole Latin arteriola glomerularis efferens capsulae renalis GraySubject 253 GrayPage 1221 Image Gray1128.png Caption Scheme of renal tubule and its vascular supply. Label Efferent vessel is visible in upper left. Image2 Gray1129.png Caption2 Distribution of bloodvessels in cortex of kidney. BranchFrom glomerular capillaries BranchTo Vein Supplies MeshName MeshNumber DorlandsPre a 62 DorlandsSuf 12156671 The efferent arterioles are blood vessel s that are part of the urinary tract of organisms . The efferent arterioles form from a convergence of the Capillary capillaries of the glomerulus . They play an important role in maintaining the glomerular filtration rate despite fluctuations in blood pressure . In the mammalian kidney they follow two markedly different courses, depending on the location of the glomeruli from which they arise. In the mammalian kidney about 15 of glomeruli lie close to the boundary between the renal cortex and renal medulla and are known as juxtamedullary glomeruli . The rest are simply undifferentiated cortical glomeruli. In undifferentiated cortical glomeruli The efferent arterioles of the undifferentiated cortical glomeruli are the most complex. Promptly on leaving the glomerulus they break up into capillaries and become part of a rich plexus of vessels surrounding the cortical portions of the renal tubules. In juxtamedullary glomeruli The efferent arterioles of the juxtamedullary glomeruli are much different. They do break up, but they form bundles of vessels arteriolae recti that cross the outer zone of the medulla to perfuse the inner zone. Vessels returning from the inner medulla venulae recti intersperse themselves in a highly regular fashion among the descending arteriolae recti to form a well organized rete mirabile . This rete is responsible for the osmotic isolation of the inner medulla from the rest ..., the efferent arterioles constrict to a greater degree than the other arteries, in response to increased ... more details
Infobox Anatomy Name PAGENAME Latin ductuli efferentes testis GraySubject 258 GrayPage 1244 Image Hodenschema.svg Caption Schematic drawing of testicle and epididymis . 1 Tunica albuginea , 2 Septula testis , 3 Lobulus testis , 4 Mediastinum testis , 5 Tubuli seminiferi contorti , 6 Tubuli seminiferi recti , 7 Rete testis , 8 Ductuli efferentes testis, 9 Ductus epididymis , 10 initial part of deferent duct Image2 Gray1149.png Caption2 Vertical section of the testis , to show the arrangement of the ducts. Labeled as vasa efferentia as top center. System Precursor Wolffian duct MeshName MeshNumber DorlandsPre d 29 DorlandsSuf 12314687 The efferent ducts or efferent ductules or ductuli efferentes connect the rete testis with the initial section of the epididymis . There are two basic designs for efferent ductule structure a multiple entries into the epididymis, as seen in most large mammals. In human s and other large mammal s, there are approximately 15 20 efferent ducts, which also occupy nearly one third of the head of the epididymis. b single entry, as seen in most small animals such as rodent s, whereby the 3 6 ductules merge into a single small ductule prior to entering the epididymis. The ductuli are unilaminar and composed of columnar ciliated and non ciliated absorptive cells. The ciliated cells serve to stir the luminal fluids, possibly to help ensure homogeneous absorption of water from the fluid produced by the testis, which results in an increase in the concentration of luminal sperm. The epithelium is surrounded by a band of smooth muscle that helps to propel the sperm toward the epididymis. Additional images gallery Image illu testis cross section.jpg gallery External links UCDavisOrganology Reproductive mammal testis0 testis4 Mammal, testis overview SUNYAnatomyLabs 36 10 01 00 Inguinal Region, Scrotum and Testes Reflection of the Head of the Epididymis BUHistology 16903loa http training.seer.cancer.gov ss module11 testis unit02 sec02 anatomy.html Diagra ... more details
Infobox Anatomy Name General visceral efferent fibers Latin GraySubject 190 GrayPage 849 Image Gray799.svg Caption Scheme showing structure of a typical spinal nerve. BR 1. General somatic efferent fibers Somatic efferent . BR 2. General somatic afferent fibers Somatic afferent . BR 3,4,5. Sympathetic efferent. BR 6,7. General visceral afferent fibers Parasympathetic afferent . Image2 Caption2 System MeshName MeshNumber DorlandsPre DorlandsSuf The term general visceral efferent fibers GVE or visceral efferent or autonomic efferent refers to the efferent neurons of the autonomic nervous system that provide motor innervation to smooth muscle, cardiac muscle, and glands contrast with Special visceral efferent SVE fibers ref cite book last Drake, Vogl, Mitchell title Gray s Anatomy for Students, 2nd Edition year 2010 publisher Elsevier ref . GVE fibers may be either sympathetic or parasympathetic ref cite book last Drake, Vogl, Mitchell title Gray s Anatomy for Students, 2nd Edition year 2010 publisher Elsevier ref . The cranial nerves containing GVE fibers include the oculomotor nerve , the facial nerve , the glossopharyngeal nerve , and the vagus nerve . ref Mehta, Samir et al. Step Up A High Yield, Systems Based Review for the USMLE Step 1. Baltimore, MD LWW, 2003. ref Additional images gallery Image Gray840.png Sympathetic connections of the ciliary and superior cervical ganglia. gallery See also Nerve fiber Preganglionic fibers Efferentnerve Gray s Nervous tissue References reflist Category Peripheral nervous system neuroscience stub ... more details
. Efferentnerve s conduct signals from the central nervous system along motor neuron s to their target muscle s and gland s. Mixed nerves contain both afferent and efferent axons, and thus conduct ...about the part of the nervous system other uses nerve disambiguation Image Nerves of the left upper extremity.gif thumb 250px Nerves yellow A peripheral nerve , or simply nerve , is an enclosed, cable like bundle of Peripheral nervous system peripheral axon s the long, slender projections of neuron s . A nerve provides a common pathway for the electrochemical nerve impulse s that are transmitted along ... 0 805 35909 5 ref Neurons are sometimes called nerve cells , though this term is potentially misleading ... the axons in myelin . Each nerve is a cordlike structure that contains many axons. These axons are often referred to as fibres . Within a nerve, each axon is surrounded by a layer of connective ... nerve is wrapped in a layer of connective tissue called the epineurium . Anatomy Nerves are categorized into three groups based on the direction that signals are conducted Afferent nerve s conduct signals ... nerve s innervate much of the body, and connect through the spinal column to the spinal cord . They are given ... to the brainstem . They are typically assigned Roman numerals from 1 to 12, although cranial nerve zero is sometimes included. In addition, cranial nerves have descriptive names. Each nerve is covered ... Perineurial septae extend into the nerve and subdivide it into several bundles of fibers. Surrounding ... the neurons of a nerve have fairly high energy requirements. Within the endoneurium, the individual nerve fibers are surrounded by a low protein liquid called endoneurial fluid. The endoneurium has properties ... spinal fluid in the central nervous system . During the development of nerve edema from nerve irritation ... nerve irritation and or injury. Physiology A nerve conveys information in the form of electrochemical impulses known as nerve impulse s or action potential s carried by the individual neurons that make ... more details
Infobox Anatomy Name General somatic efferent fibers Latin GraySubject 190 GrayPage 849 Image Gray799.svg Caption Scheme showing structure of a typical spinal nerve. BR 1. Somatic efferent. BR 2. General somatic afferent fibers Somatic afferent . BR 3,4,5. General visceral efferent fibers Sympathetic efferent . BR 6,7. General visceral afferent fibers Sympathetic afferent . Image2 Caption2 System MeshName MeshNumber DorlandsPre DorlandsSuf The spinal somatic efferent neurons GSE , somatomotor , or somatic motor fibers , arise from motor neuron cell bodies in the ventral horns of the gray matter within the spinal cord . They exit the spinal cord through the ventral roots , carrying motor impulses to skeletal muscle . Of the somatic efferent neurons, there exist subtypes. Alpha motor neurons target extrafusal muscle fiber s. Gamma motor neurons target intrafusal muscle fibre s Cranial nerves also supply their own somatic efferent neurons to the extraocular muscles and some of the muscles of the tongue. See also Nerve fiber Efferentnerve References reflist Gray s Nervous tissue Category Peripheral nervous system neuroscience stub ... more details
Special visceral efferent SVE refers to efferent nerves which supply muscles which derived from the branchial arches . ref NormanAnatomy cranialnerves ref Some sources prefer the term branchiomotor , ref http cancerweb.ncl.ac.uk cgi bin omd?branchiomotor nuclei Definition branchiomotor nuclei from Online Medical Dictionary ref or branchial efferent . ref name title Cite web url http www.ana.ed.ac.uk anatomy humat notes embryo nervous rhombencephalon rhomben.htm title ana.ed.ac.uk accessdate 2008 02 17 work ref The only nerves containing SVE fibers are cranial nerve s the trigeminal nerve V , the facial nerve VII , the glossopharyngeal nerve IX , the vagus nerve X and the accessory nerve XI . ref Drake et al. 2010 , Gray s Anatomy for Students, 2nd Ed., Churchill Livingstone. ref References Reflist External links http sprojects.mmi.mcgill.ca cns histo systems cranialnerves main.htm Overview at mmi.mcgill.ca Nervous tissue Category Neuroscience Neuroscience stub ... more details
The Nerve could refer to The Nerve magazine The Nerve magazine , a defunct Canadian monthly music magazine The Nerve radio network , an active rock music service from Citadel Media KTUM , 107.1 The Nerve , a radio station licensed to serve Tatum, New Mexico, United States Bearded Billy The Nerve Bearded Billy The Nerve , a 2004 episode of The Grim Adventures of Billy & Mandy The Nerves , an American power pop trio based in Los Angeles in the 1970s disambig callsign ... more details
Infobox Lymph Name Efferent lymphatic vessel Latin vasa efferentia lymphoglandulae GraySubject 175 GrayPage 689 Image Illu lymph node structure.png Caption Structure of the lymph node. Image2 Caption2 DrainsFrom DrainsTo MeshName MeshNumber Dorlands DorlandsID The efferent lymphatic vessel commences from the Subcapsular sinus lymph sinuses of the medulla of lymph node medullary portion of the lymph nodes and leave the lymph nodes either to veins or greater nodes. Efferent lymphatic vessels are also found in the thymus and spleen . This is in contrast to afferent lymphatic vessels , which are found only in lymph nodes . Additional images gallery Image Schematic of lymph node showing lymph sinuses.png Schematic of lymph node showing lymph sinuses gallery External links BiowebUW APlab Table of Contents Lab 11 Lymph node 2 Lymph node 2c lymph node 2c.html Efferent lymph vessel LoyolaMedEd Histo practical lymph hp12 55.html http faculty.une.edu com abell histo Histolab6.htm Image at une.edu http www.cvm.okstate.edu instruction mm curr histology HistologyReference HRLym.htm Overview at okstate.edu Lymphatic flow Lymphatic organ anatomy Gray s Category Lymphatic system lymphatic stub ja ... more details
Infobox Nerve Name Spinal nerve Latin nervi spinales GraySubject 208 GrayPage 916 Image spinal nerve.svg Caption The formation of the spinal nerve from the dorsal and ventral roots Image2 Gray799.svg Caption2 Scheme showing structure of a typical spinal nerve. BR 1. General somatic efferent fibers Somatic efferent . BR 2. General somatic afferent fibers Somatic afferent . BR 3,4,5. General visceral efferent fibers Sympathetic efferent . BR 6,7. General visceral afferent fibers Sympathetic afferent ... The term spinal nerve generally refers to a mixed spinal nerve , which carries motor, sensory ... nerves, each roughly corresponding to a segment of the vertebral column 8 cervical spinal nerve pairs ... pair. The spinal nerves are part of the peripheral nervous system PNS . Anatomy Each spinal nerve is formed by the combination of nerve fibers from the Posterior root of spinal nerve dorsal and Anterior root of spinal nerve ventral roots of the spinal cord . The dorsal roots carry afferent nerve afferent sensory neuron sensory axons , while the ventral roots carry efferentnerveefferent motoneuron motor axons . The spinal nerve emerges from the spinal column through an opening intervertebral foramen between adjacent vertebrae. This is true for all spinal nerves except for the first spinal nerve ... to L5 and the next nerve is S1. Outside the vertebral column, the nerve divides into branches. The dorsal ... surface, structures in the body wall, and the limbs. The Meningeal branches of spinal nerve meningeal branches recurrent meningeal or sinuvertebral nerves branch from the spinal nerve and re enter the intervertebral ... ventral rami merge with adjacent ventral rami to form a nerve plexus , a network of interconnecting ... The muscles that one particular spinal root supplies are that nerve s myotome , and the dermatome anatomy dermatomes are the areas of sensory innervation on the skin for each spinal nerve. Lesions of one or more nerve roots result in typical patterns of neurologic defects muscle weakness , abnormal ... more details
Infobox Nerve Name PAGENAME Latin nervus nasociliaris GraySubject 200 GrayPage 888 Image Gray777.png Caption Nerves of the orbit, and the ciliary ganglion . Side view. Nasociliary is at center. Image2 ... BranchFrom Ophthalmic nerve BranchTo long root of the ciliary ganglion , the long ciliary nerves , the infratrochlear nerve , and the ethmoidal nerves MeshName MeshNumber DorlandsPre n 05 DorlandsSuf 12566272 The nasociliary nerve is a branch of the ophthalmic nerve . It is intermediate in size between the two other main branches of the ophthalmic nerve, the frontal nerve and the lacrimal nerve , and is more deeply placed. Path The nasociliary nerve enters the orbit between the two heads of the lateral rectus muscle s and between the superior and inferior rami of the oculomotor nerve CN III . It passes across the optic nerve CN II and runs obliquely beneath the superior rectus muscle ... ethmoidal opening as the anterior ethmoidal nerve and enters the cranial cavity just above the cribriform ... blink reflex , one can test the integrity of the nasociliary nerve and, ultimately, the trigeminal nerve by examining this reflex in the patient. Normally both eyes should blink when either conjuntiva is irritated. If neither eye blinks, then either the ipsilateral nasociliary nerve is damaged, or the facial nerve CN VII, which carries the efferent limb of this reflex is bilaterally damaged. If only the contralateral eye blinks, then the ipsilateral facial nerve is damaged. If only the ipsilateral eye blinks, then the contralateral facial nerve is damaged. Branches The nasociliary nerve gives off the following branches posterior ethmoidal nerve long ciliary nerve s infratrochlear nerve long ... ganglion anterior ethmoidal nerve PLICA is a mnemonic often used to remember these branches. Additional ... nerve. Image Gray776.png Nerves of the orbit. Seen from above. Image Gray778.png Distribution ... nerve neuroanatomy stub Category Nerves de Nervus nasociliaris es Nervio nasal sr ... more details
Nerve . The efferent arc occurs via the Facial Nerve. The reflex involves consensual blinking ...Refimprove date February 2009 Infobox Nerve Name Facial nerve Latin nervus facialis GraySubject 202 GrayPage 901 Image Cranial nerve VII.svg Caption Cranial nerve VII Image2 Gray790.png Caption2 The nerves ... Nerve MeshNumber A08.800.800.120.250 DorlandsPre n 05 DorlandsSuf 12565770 Cranial nerves short The facial nerve is the seventh VII of twelve paired cranial nerves . It emerges from the brainstem between ... The motor part of the facial nerve arises from the facial nerve nucleus in the pons while the sensory part of the facial nerve arises from the nervus intermedius . The motor part and sensory part of the facial nerve enters the petrous temporal bone into the internal auditory meatus intimately close ... of cranial nerve IX, the glossopharyngeal nerve . The facial nerve forms the geniculate ganglion prior to entering the facial canal. Branches Inside Skull Greater petrosal nerve ... nerve . Nerve to stapedius provides motor innervation for stapedius muscle in middle ear Chorda ... auricular nerve controls movements of some of the scalp muscles around the ear Branch to Posterior ... Temporal branch of the facial nerve Zygomatic branch of the facial nerve Buccal branch of the facial nerve Marginal mandibular branch of the facial nerve Cervical branch of the facial nerve Reference necessary 1 Intra operatively the facial nerve is recognized at 3 constant land marks br 1 At the tip of tragal cartilage where the nerve is 1cm deep and inferior br 2 At the posterior belly of digastric by tracing this backwards to the tympanic plate the nerve can be found between these two structures ... nerve is br Ten Zebras Buggered My Cat br Today Zoe Bummed My Car br To Zanzibar By Motor ... nerve is, Perhaps A Tiny Zebra Bit My Cheek or Please Tell Ziggy Bob Marley Called . File Facial nerve.jpg thumb right 300px Facial nerve Embryology The facial nerve is developmentally derived ... more details
Infobox Nerve Name PAGENAME Latin nervus genitofemoralis GraySubject 212 GrayPage 953 Image Lumbar plexus.svg Caption Plan of lumbar plexus . Genitofemoral nerve visible at upper left. Image2 Gray823.png Caption2 The lumbar plexus and its branches. Genitofemoral nerve visible at upper left. Innervates cremaster BranchFrom lumbar plexus BranchTo lumboinguinal nerve lumboinguinal , genital branch of genitofemoral nerve genital branch DorlandsPre n 05 DorlandsSuf 12565836 In human anatomy , the genitofemoral nerve originates from the upper part of the lumbar plexus of spinal nerves. Its roots are L1 and L2 lumbar . The genitofemoral nerve is responsible for both the efferent and afferent limbs of the cremasteric reflex . The ilioinguinal nerve L1 is also involved in the afferent limb of the reflex. It emerges on the anterior surface of the psoas major muscle and divides into two branches The femoral branch , or lumboinguinal nerve , supplies skin anterior to the upper part of the femoral triangle The Genital branch of genitofemoral nerve genital branch in males, it travels through the inguinal canal , along with the spermatic cord , and supplies the cremaster muscle and the scrotal skin in females, it ends in the skin of the mons pubis and labia majora Additional images gallery Image Gray824.png Deep and superficial dissection of the lumbar plexus. Image Gray837.png Sacral plexus of the right side. gallery External links SUNYAnatomyLabs 36 07 03 05 Inguinal Region, Scrotum and Testes Layers of the spermatic cord SUNYAnatomyFigs 40 07 13 Muscles and nerves of the posterior abdominal wall. MUNAnatomy nerve lumbnerv NormanAnatomy posteriorabdomen NormanAnatomyFig posteriorabdmus&nerves Lumbosacral plexus Category Nerves of the lower limb and lower torso de Nervus genitofemoralis it Nervo genitofemorale pl Nerw p ciowo udowy ru ... more details
Infobox Anatomy Name PAGENAME Latin neurofibra GraySubject GrayPage Image Nerve root very high mag.jpg Caption Micrograph showing nerve fibers in a nerve root. HPS stain . Image2 Caption2 Precursor System Artery Vein Nerve Lymph MeshName Nerve Fibers MeshNumber Code Terminologia Anatomica TA A14.0.00.001 A nerve fiber is a threadlike extension of a nerve cell and consists of an axon and myelin sheath if present in the nervous system . There are nerve fibers in the central nervous system and peripheral nervous system . A nerve fiber may be myelinated and or unmyelinated. In the central nervous system ... of myelin in the PNS . A peripheral nerve fiber consists of an axon, myelin sheath, Schwann cells and its ... nerve fibers In the central nervous system, nerve fibers differ in terms of size, conduction velocity, and presence or lack of myelin. For example, the olfactory nerve fibers are short and without myelin, but the optic nerve fibers are myelinated the olfactory and optic nerves are considered as a parts of the CNS, while other cranial nerves are a component of the PNS . A bundle of nerve fibers ... long nerve fibers that descend from the brain to the spinal cord . These fibers have an important role in motor control , and are known as descending tracts. There are other bundles of nerve fibers ... nerve fiber types A nerve may be sensory, motor or sensory motor mixed . There are three types of nerve fibers in a mixed nerve that include Sensory nerve fibers afferent fibers Motor nerve fibers efferent fibers Autonomic nerve fibers autonomic fibers Components of peripheral nerve fiber Each peripheral nerve fiber contains An axon or a long dendrite of sensory fiber that also is known as an axon ... nerve fibers There are three types of peripheral nerve fibers based on their diameter A group ... fibers. The A group consists of four types of nerve fibers A alpha fibers afferent or efferent fibers A beta fibers afferent or efferent fibers A gamma fibers efferent fibers A delta ... more details
accessory nerve that innervates them must carry branchiomeric special visceral efferent , SVE ... accessory nerve to carry General somatic efferent fibers general somatic efferent GSE information ... of the vagal efferent fibers, people began to view the accessory fibers as part of the vagus nerve ...Infobox Nerve Name Accessory nerve Latin nervus accessorius GraySubject 206 GrayPage 913 Image Gray791.png ... MeshName Accessory Nerve MeshNumber A08.800.800.120.060 Cranial nerves short In anatomy , the accessory nerve is a nerve that controls specific muscle s of the shoulder and neck. As part of it was formerly believed to originate in the brain , it is considered a cranial nerve . Based on its location ... abbreviated CN XI . Traditional descriptions of the accessory nerve divide it into two parts a spinal ... 206 title The Accessory Nerve format work Gray s Anatomy of the Human Body ref But because the cranial component rapidly joins the vagus nerve and serves the same function as other vagal nerve fibers, modern descriptions often consider the cranial component part of the vagus nerve and not part of the accessory nerve proper. ref name luc cite web url http www.meddean.luc.edu lumen MedED grossanatomy h n cn cn1 cn11.htm title Spinal Accessory Nerve accessdate 2007 06 17 format work Structure of the Human ... nerve, the common practice is to dismiss the cranial part altogether, referring to the accessory nerve specifically as the spinal accessory nerve . The spinal accessory nerve provides motor ... a neurological examination to assess function of the spinal accessory nerve. Limited range of motion or poor muscle strength are suggestive of damage to the spinal accessory nerve, which can result from a variety of causes. Injury to the spinal accessory nerve is most commonly caused by medical procedures ... SP title Iatrogenic accessory nerve injury journal Annals of the Royal College of Surgeons of England volume 78 issue 2 pages 146 50 year 1996 pmid 8678450 doi pmc 2502542 ref The accessory nerve is derived ... more details
Infobox Nerve Name Glossopharyngeal nerve Latin nervus glossopharyngeus GraySubject 204 GrayPage 906 Image Gray791.png Caption Plan of upper portions of glossopharyngeal , vagus , and accessory nerve s. Image2 ... nerve s. Label for glossopharyngeal is at upper right. Innervates stylopharyngeus muscle stylopharyngeus BranchFrom BranchTo tympanic nerve MeshName Glossopharyngeal Nerve MeshNumber A08.800.800.120.290 DorlandsPre n 05 DorlandsSuf 12565844 Cranial nerves short The glossopharyngeal nerve is the ninth ... of the upper Medulla oblongata medulla , just rostral closer to the nose to the vagus nerve . The motor division of the glossopharyngeal nerve is derived from the Basal plate neural tube basal plate ... crest . Functions There are a number of functions of the glossopharyngeal nerve It receives general ... , the only motor component of this cranial nerve. It contributes to the pharyngeal plexus . Glossopharyngeal Overview The glossopharyngeal nerve consists of five components with distinct functions Branchial motor special visceral efferent supplies the stylopharyngeus muscle. Visceral motor general visceral efferent provides parasympathetic innervation of the parotid gland. Visceral sensory general ... of visceral motor component Parasympathetic component of the glossopharyngeal nerve that innervates the ipsilateral parotid gland. Origin and central course The preganglionic nerve fibers originate in the inferior ... glossopharyngeal ganglia that contain nerve cell bodies that mediate general, visceral ... the inferior ganglion with CN IX general sensory fibers as the tympanic nerve. Before exiting the jugular foramen, the tympanic nerve enters the petrous portion of the temporal and ascends via the inferior tympanic canaliculus to the tympanic cavity. Within the tympanic cavity the tympanic nerve ... motor fibers pass through this plexus and merge to become the lesser petrosal nerve. The lesser petrosal nerve re enters and travels through the temporal bone to emerge in the middle cranial ... more details
Image Spinal nerve CAT.svg thumb right 200px Spinal nerve Image Gray804.png thumb right 200px Plexus Cervical plexus Image Brachial plexus 2.svg thumb right thumb 200px Anatomical illustration of the Plexus Brachial plexus with areas of roots, trunks, divisions and cords marked. Clicking on names of branches will link to their Wikipedia entry. Image Lumbar plexus.svg thumb right 200px The Plexus Lumbar plexus and its branches. Image Gray828 es.svg right thumb 200px Plexus Plan of sacral and coccygeal plexuses. A nerve plexus is a network of intersecting nerve s. Except for the ventral rami of Th2 Th11 nerves, they combine sets of ventral rami of vertebral column spinal nerves that serve the same area of the body into one large grouped nerve. There are several in the body, including Cervical plexus serves the head, neck and shoulders Brachial plexus serves the chest, shoulders, arms and hands Lumbar plexus serves the back, abdomen, groin, thighs, knees, and calves Sacral plexus serves the pelvis ... nerve s cranial nerve vagus nerve X. and cranial nerve hypoglossal nerve XII. nervus vagus et ... parts of the abdominal wall efferent motor innervation and to the pleura and peritoneum afferent ... and external genitals . The largest nerve of the plexus is the femoral nerve . It supplies anterior ... and the lower limb . The largest nerve of the human body, the sciatic nerve is the main branch ... peroneal nerve and its branches innervate some part of the skin of the foot, the peroneal muscles of the leg ..., Co1 spinal nerves. It is interconnected with the lower part of Sacral plexus . The only nerve of the plexus is the coccygeal nerve , that serves sensory innervation of the skin in the coccygeal coccygeal ... 095 d Plexus disorders Gallery center gallery widths 150px gallery perrow 5 Image Spinal nerve CAT.svg Spinal nerve Image Gray804.png Cervical plexus Image Brachial plexus 2.svg Anatomical illustration ... branches Image Gray828.png Plan of plexus Sacral and Coccygeal plexuses . gallery center Category Nerve ... more details
abducens nucleus BranchTo MeshName Abducens Nerve MeshNumber A08.800.800.120.030 DorlandsPre DorlandsSuf Cranial nerves short The abducens nerve or abducent nerve the sixth cranial nerve , also called the sixth nerve or simply VI is a somatic efferentnerve that controls the movement of a single ...Infobox Nerve Name Abducens nerve Latin nervus abducens GraySubject 201 GrayPage 899 Image abducens nerve1.png Caption The path of the Abducens nerve Image2 Brain human normal inferior view with labels ... cranial nerve is nervus abducens . The Terminologia Anatomica officially recognizes two different English translations abducent nerve and abducens nerve . ref Federative Committee on Anatomical ... National Library of Medicine uses abducens nerve in its Medical Subject Heading Medical Subject Headings ... s Anatomy 2005 also prefers abducens nerve. ref Standring S ed. Gray s Anatomy, 39th edition. Elsevier ... The abducens nerve leaves the brainstem at the junction of the pons and the medulla oblongata medulla , medial to the facial nerve . In order to reach the eye, it runs upward superiorly and then bends forward anteriorly . The nerve enters the subarachnoid space when it emerges from the brainstem ... muscle of the eye. The long course of the abducens nerve between the brainstem and the eye makes ... damage the nerve, as can aneurysms of the intracavernous carotid artery. Mass lesions that push the brainstem downward can damage the nerve by stretching it between the point where it emerges ... of the facial colliculus . Axons from the facial nerve loop around the abducens nucleus ... junction. The central anatomy of the sixth nerve predicts correctly that infarcts affecting the dorsal pons at the level of the abducens nucleus can also affect the facial nerve, producing an ipsilateral ... involving the ventral pons can affect the sixth nerve and the corticospinal tract simultaneously ... Peripheral lesions Complete interruption of the peripheral sixth nerve causes diplopia double vision ... more details
Infobox nerve Name Trochlear nerve Latin nervus trochlearis GraySubject GrayPage Image Trochlear nerve.png Caption Path of the Trochlear nerve Image2 Brain human normal inferior view with labels en.svg ... oblique muscle BranchFrom BranchTo MeshName Trochlear Nerve MeshNumber A08.800.800.120.800 DorlandsPre DorlandsSuf Cranial nerves short The trochlear nerve the fourth cranial nerve , also called the fourth nerve , IV is a motor nerve a somatic efferentnerve that innervates a single muscle the Superior oblique muscle superior oblique muscle of the eye. The trochlear nerve is unique among the cranial nerves in several respects. It is the smallest nerve in terms of the number of axons it contains. It has the greatest intracranial length. Other than the optic nerve cranial nerve II , it is the only cranial nerve that decussates crosses to the other side before innervating its target. ref A technical exception to this rule occurs in the nucleus of the third cranial nerve. The oculomotor ... cranial nerve that exits from the dorsal aspect of the brainstem. Homologous trochlear nerves are found in all jawed vertebrates . The unique features of the trochlear nerve, including its dorsal ... American Museum of Natural History, 2004 ref The human trochlear nerve is derived from the Basal plate ... left 150px The Cavernous Sinus The trochlear nerve emerges from the dorsal aspect of the brainstem at the level ... nerve with special reference to its site of entrance. J. Anat. 159 29 35, 1988 ref It runs ... nerves III and the first two branches of the trigeminal nerve V , Ophthalmic V1 and Maxillary V2. The internal carotid artery and Abducens nerve VI run within the cavernous sinus. Finally, it enters the orbit ... on the medial aspect of the orbit. Trochlea means pulley in Latin the fourth nerve is named after ... 300px Trochlear nerve In order to understand the actions of the superior oblique muscle, it is useful ... consequences of weakness in the superior oblique caused, for example, by fourth nerve palsies ... more details
Wikt Petrosal nerve may refer to Deep petrosal nerve Greater petrosal nerve also known as the greater superficial petrosal nerve Lesser petrosal nerve also known as the lesser superficial petrosal nerve from the geniculate ganglion to the otic ganglion disambig it Nervo petroso ... more details
wiktionary nerve A nerve is a part of the peripheral nervous system . Nerve may also refer to Nerve band , band of Jojo Mayer Nerve category theory , a construction in category theory Nerve Farscape Nerve Farscape , a 2000 episode of Farscape Nerve magazine Nerve magazine , a Liverpool based arts and social issues magazine Nerve novel Nerve novel , a 1964 novel by Dick Francis Nerve of an open covering , a construction in mathematical topology Nerve Recordings , a record label Nerve Software , a video game developer Nerve website Nerve website , a website and magazine Nerves , a remix cover of Porcupine Tree s Blackest Eyes by the Indie music independent , web based, Electronic music electronic Dubstep dubstep artist known as Futret musician Futret See also Nerv disambiguation Nerven , a 1919 film by the Austrian director and novelist Robert Reinert 1872 1928 Nerves song Nerves song , by UK band Maths Class The Nerves , a 70s power pop group disambiguation fr Nerve eo Nervo apartigilo ... more details
Encyclopedia
top
