vomit after being kicked due to a rare condition in which his epiglottis failed. Although Smithers ... the death of a human being . In his defence, Smithers argued that it was the epiglottis condition that caused ... doctrine in homicide, where the fact that Cobby was susceptible to failure of the epiglottis should ... more details
Place of articulation Radical consonants are those consonants articulated with the root base of the tongue in the throat . This includes the pharyngeal consonant pharyngeal , epiglottal consonant epiglottal , and epiglotto pharyngeal consonant epiglotto pharyngeal places of articulation, though technically epiglottal consonants take place in the larynx . The term radical was coined to help disambiguate pharyngeal , which had come to mean any consonant articulated in the throat, whether the articulator was the back of the tongue high pharyngeals or the epiglottis low pharyngeals . However, the term pharyngeal is still commonly used in the broader sense, and authors such as Miller 2005 prefer guttural , which may include glottal consonant s as well. See also Place of articulation Index of phonetics articles References SOWL Miller, Amanda 2005 , Guttural vowels and guttural co articulation in Ju hoansi . Journal of Phonetics, vol. 35, Issue 1, January 2007, pp 56 84. Category Consonants br Kensonenn gwrizienn an teod de Radikal Phonetik es Consonante radical eo Radikalo fonetiko lv Radik ls l dzskanis nl Radicaal fonetiek ja simple Radical consonant sv Radikal konsonant zh ... more details
phonation Nofootnotes date August 2008 Onesource date August 2008 Strident vowels also called sphincteric vowels are strongly pharyngealization pharyngealized vowels accompanied by epiglottal trill ary epiglottal trill , where the larynx is raised and the pharynx constricted, so that either the epiglottis or the arytenoid cartilage s vibrate instead of the vocal cords . Strident vowels are fairly common in Khoisan languages , where they contrast with simple pharyngealized vowels. Stridency may be a type of phonation called harsh voice . A similar phonation, but without the trill, is called pressed voice or ventricular voice . The Bai language of southern China has a register phonology register system with allophone allophonic strident and pressed vowels. There is no official symbol for stridency in the International Phonetic Alphabet IPA , though a superscript IPA sup sup is often used. In some literature a subscript double tilde is sometimes used, as seen here on the letter a IPA a center Image Strident vowel a.png 25px center This is found in the Charis SIL Charis and Doulos SIL Doulos fonts IPA a , and has been accepted into Unicode at code point U 1DFD. References SOWL Category Phonation phonetics stub br Vogalenn skiltr ... more details
Infobox Anatomy Name Laryngeal inlet Latin aditus laryngis GraySubject 236 GrayPage 1078 Image Gray1204.png Caption The entrance to the larynx. Image2 Caption2 Precursor System Artery Vein Nerve Lymph MeshName MeshNumber DorlandsPre a 16 DorlandsSuf 12113268 The laryngeal inlet laryngeal aditus , laryngeal aperture is the opening that connects the pharynx and the larynx . File Aditus of larynx.jpg thumb right 300px Aditus of larynx Borders Its borders are formed by the free curved edge of the epiglottis , anteriorly the arytenoid cartilage s, the corniculate cartilage s, and the interarytenoid fold , posteriorly the aryepiglottic fold , laterally References cite book author title Stedman s Medical Dictionary Veterinary Medicine Insert With over 45 Images and Reference Tables publisher Lippincott Williams & Wilkins location Hagerstown, MD year 2000 pages isbn 0781745462 oclc doi cite book author Dalley, Arthur F. Moore, Keith L. title Clinically Oriented Anatomy publisher Lippincott Williams & Wilkins location Hagerstown, MD year 1999 pages isbn 0 7817 5936 6 oclc doi See also aditus External links UMichAtlas rsa4p1 listed as Inlet of the larynx Larynx anatomy Category Head and neck ... more details
Infobox Nerve Name Internal laryngeal nerve Latin ramus internus nervi laryngei superioris GraySubject 205 GrayPage 912 Image Gray793.png Caption Course and distribution of the glossopharyngeal, vagus, and accessory nerves. Internal branch of superior laryngeal labeled at center right. Image2 Caption2 Innervates BranchFrom superior laryngeal nerve BranchTo MeshName MeshNumber DorlandsPre r 02 DorlandsSuf 12690381 The internal laryngeal nerve is the internal branch ramus internus of the superior laryngeal nerve . It descends to the thyrohyoid membrane , pierces it in company with the superior laryngeal artery , and is distributed to the mucous membrane of the larynx . Of these sensory branches some are distributed to the epiglottis , the base of the tongue , and the epiglottic glands others pass backward, in the aryepiglottic fold , to supply the mucous membrane surrounding the entrance of the larynx, and that lining the cavity of the larynx as low down as the vocal folds. A filament descends beneath the mucous membrane on the inner surface of the thyroid cartilage and joins the recurrent nerve . Above the vocal folds the sensory innervation of the larynx is via the internal laryngeal nerve. Below the vocal folds it is by way of branches of the recurrent laryngeal nerve . The vocal fold itself receives dual innervation from both nerves. Pathology Irritation of the internal laryngeal nerve results in uncontrolled coughing usually as a result of food or water in the laryngopharynx . Additional images gallery Image Larynx external en.svg The ligaments of the larynx. Antero lateral view. gallery External links GPnotebook 563412934 NormanAnatomy cranialnerves NormanAnatomyFig X Cranial nerves Category Cranial nerves neuroscience stub ... more details
Special visceral afferent SVA refers to afferent nerves that develop in association with the gastrointestinal tract . ref NormanAnatomy cranialnerves ref They carry the special senses of smell olfaction and taste gustation . The cranial nerve s containing SVA fibers are the olfactory nerve I , the facial nerve VII , the glossopharyngeal nerve IX and the vagus nerve X . The facial nerve receives taste from the anterior two thirds of the tongue the glossopharyngeal from the posterior third. SVA fibres in the vagus originate in the epiglottis and pharynx . ref Drake et al. 2010 , Gray s Anatomy for Students, 2nd Ed., Churchill Livingstone. ref The sensory processes, suing their primary cell bodies from the inferior ganglion send projections to the medulla, from which they travel in the tractus solitarius, later terminating at the rostral nucleus solitarius. ref Bhatnagar C. Subhash. Neuroscience for the study of communicative disorders . Philadelphia, Pennsylvania. Lippincott Williams & Wilkins, 2002 ref References references External links http sprojects.mmi.mcgill.ca cns histo systems cranialnerves main.htm Overview at mmi.mcgill.ca Nervous tissue DEFAULTSORT Special Visceral Afferent Category Neuroscience Neuroscience stub ... more details
Infobox Anatomy Name PAGENAME Latin pars posterior dorsi linguae GraySubject 243 GrayPage 1125 Image Illu04 tongue.jpg Caption Tongue Image2 Gray955.png Caption2 The entrance to the larynx, viewed from behind. Precursor System Artery Vein Nerve Hypoglossal nerve hypoglossal motor , Glossopharyngeal nerve glossopharyngeal sensory Lymph MeshName MeshNumber DorlandsPre p 07 DorlandsSuf 12617579 The Posterior tongue , or pharyngeal part , is the part of the tongue behind the Terminal sulcus tongue terminal sulcus . At its root, it is directed backward, and connected with the hyoid bone by the Hyoglossi and Genioglossi muscles and the hyoglossal membrane with the epiglottis by three folds glossoepiglottic of mucous membrane with the soft palate by the glossopalatine arches and with the pharynx by the Constrictores pharyngis superiores and the mucous membrane . It is derived primarily from the third pharyngeal arch . The second arch has a substantial contribution during fetal development, but this later atrophies. The fourth arch may also contribute, depending upon how the boundaries of the tongue are defined. See also Midline glossectomy External links EmbryologyUNSW Notes head6 Gray s digestive stub Mouth anatomy Category Gustatory system Category Tongue pt L ngua posterior ... more details
Infobox Anatomy Name Laryngeal cavity Latin cavitas laryngis GraySubject 236 GrayPage 1078 Image Gray953.png Caption Sagittal section of the larynx and upper part of the trachea. Image2 Gray954.png Caption2 Coronal section of larynx and upper part of trachea. Precursor System Artery Vein Nerve Lymph MeshName MeshNumber DorlandsPre c 16 DorlandsSuf 12220483 The laryngeal cavity cavity of the larynx extends from the laryngeal entrance downwards to the lower border of the cricoid cartilage where it is continuous with that of the Vertebrate trachea trachea . It is divided into two parts by the projection of the vocal fold s, between which is a narrow triangular fissure or chink, the rima glottidis . The portion of the cavity of the larynx above the vocal folds is called the Vestibule of the larynx vestibule it is wide and triangular in shape, its base or anterior wall presenting, however, about its center the backward projection of the tubercle of the epiglottis. It contains the ventricular folds , and between these and the vocal folds are the ventricles of the larynx . The portion below the vocal folds is called the infraglottic cavity. It is at first of an elliptical form, but lower down it widens out, assumes a circular form, and is continuous with the tube of the trachea. External links http www.emory.edu ANATOMY AnatomyManual pharynx.html Gray s Larynx anatomy Category Head and neck anatomy stub ... more details
accurate in horses, because their normal anatomy prevents them from breathing orally. The epiglottis ... nasal breathers. Like horses, the normal anatomical position of the epiglottis causes it to be engaged ... last1 Laitman first1 JT last2 Crelin first2 ES last3 Conlogue first3 GJ title The function of the epiglottis ... more details
Infobox Muscle Name PAGENAME Latin musculus thyroarytenoideus GraySubject 236 GrayPage 1083 Image Musculusthyreoarytenoideus.png Caption Muscles of the larynx , seen from above. Origin Inner surface of the thyroid cartilage anterior aspect Insertion Anterior surface of arytenoid cartilage Blood Nerve recurrent laryngeal nerve recurrent laryngeal branch of the vagus Action helps to reduce tension on the vocal folds during Manner of articulation speech to decrease pitch music pitch DorlandsPre m 22 DorlandsSuf 12551138 The thyroarytenoid is a broad, thin muscle that lies parallel with and lateral to the vocal fold and that supports the wall of the ventricle and its appendix. It functions in fine tonal control of the vocal cords. Origin and insertion It arises in front from the lower half of the angle of the thyroid cartilage , and from the middle cricothyroid ligament . Its fibers pass backward and laterally, to be inserted into the base and anterior surface of the arytenoid cartilage. Parts of thyroarytenoid The lower and deeper fibers of the muscle can be differentiated as a triangular band which is inserted into the vocal process of the arytenoid cartilage, and into the adjacent portion of its anterior surface it is termed the Vocalis , and lies parallel with the vocal ligament , to which it is adherent. ref eMedicineDictionary Vocalis muscle ref A considerable number of the fibers of the Thyreoaryt noideus are prolonged into the aryepiglottic fold , where some of them become lost, while others are continued to the margin of the epiglottis. They have received a distinctive name, Thyreoepiglotticus or Thyroepiglottic , and are sometimes described as a separate muscle. ref eMedicineDictionary Thyroepiglottic muscle ref A few fibers extend along the wall of the ventricle from the lateral wall of the arytenoid cartilag e to the side of the epiglottis and constitute the Ventricularis muscle. Actions The Thyreoaryt noidei, consisting of two parts having different attachm ... more details
Infobox Anatomy Name Vestibular fold Latin plica vestibularis, plica ventricularis GraySubject 236 GrayPage 1079 Image Gray956.png Caption Laryngoscopic view of the vocal folds. Vestibular fold labeled at center right. Image2 Gray954.png Caption2 Coronal section of larynx and upper part of trachea. Precursor System Artery Vein Nerve Lymph MeshName MeshNumber DorlandsPre p 24 DorlandsSuf 12649402 The vestibular fold ventricular fold , superior or false vocal cord is one of two thick folds of mucous membrane, each enclosing a narrow band of fibrous tissue, the ventricular ligament , which is attached in front to the angle of the thyroid cartilage immediately below the attachment of the epiglottis , and behind to the antero lateral surface of the arytenoid cartilage , a short distance above the vocal process . The lower border of this ligament, enclosed in mucous membrane , forms a free crescentic margin, which constitutes the upper boundary of the ventricle of the larynx . The vestibular folds of the larynx play a greater role in keeping food and drink out of the airway, breathing, and phonation speech . ref Vestibular fold flap for post cordectomy laryngeal reconstruction Mamede, Ricz, Aguiar Ricz, Mello Filho http www.otojournal.org article S0194 5998 04 01828 5 abstract Abstract ref People who have had their epiglottis removed because of cancer do not choke any more than when it was present. Citation needed date August 2009 They have a minimal role in normal phonation , but are often used to produce deep sonorous tones in Tibetan Chant Chanting Tibetan chant and Tuvan throat singing , ref Citation last Fuks first Leonardo title From Air to Music Acoustical, Physiological and Perceptual Aspects of Reed Wind Instrument Playing and Vocal Ventricular Fold Phonation url http www.speech.kth.se music publications leofuks thesis contents.html accessdate 2010 01 05 year 1998 location Stockholm, Sweden ref as well as in screaming music musical screaming and the death growl s ... more details
Infobox Anatomy Name Tunica externa vessels Latin tunica externa vasorum, tunica adventitia vasorum GraySubject 133 GrayPage 499 Image Illu artery.jpg Width 250 Caption Section of a medium sized artery . Image2 Gray448.png Caption2 Transverse section through a small artery and vein of the mucous membrane of the epiglottis of a child. Tunica adventitia is at a Precursor System Artery Vein Nerve Lymph MeshName MeshNumber Code TerminologiaHistologica 3 09 02.0.01009 DorlandsPre t 22 DorlandsSuf 12831733 The tunica externa , also known as the tunica adventitia or adventitia , is the outermost layer of a blood vessel , surrounding the tunica media . It is mainly composed of collagen and is supported by external elastic lamina. The collagen serves to anchor the blood vessel to nearby organs, giving it stability. Pathology A common pathological disorder concerning the tunica externa is scurvy , also known as vitamin C deficiency. Scurvy occurs because vitamin C is essential for the synthesis of collagen, and without it, the faulty collagen cannot maintain the vein walls, and they internal bleeding rupture , leading to a wide multitude of problems. Additional images gallery File Endothelial cell.jpg Anatomy of the arterial wall Image Calcificatio atherosclerotica.jpg Microphotography of arterial wall with calcified violet colour atherosclerotic plaque haematoxillin & eosin stain gallery See also Adventitia Tunica media Tunica intima External links UCDavisOrganology Circulatory vessels vessels7 vessels4 Bird, vessels LM, High eMedicineDictionary adventitia http biology.about.com library organs heart bltunica3.htm Image at About.com Gray s Cardiovascular system Category Veins circulatory stub it Tonaca avventizia ... more details
wiktionarypar Vestibule Vestibule or Vestibulum can have the following meanings, each primarily based upon a common origin, from early 17th century French, derived from Latin vestibulum, i n. entrance court . Anatomy In general, vestibule is a small space or cavity at the beginning of a canal. The vulval vestibule is the posterior 2 3 of the labia minora, the location of the urethral meatus and the paraurethral glands of Skene and the introitus of the vagina The nasal vestibule is the nostrils, simply lined with an extension of skin epithelium, in contrast to nasal cavity, which is lined with respiratory epithelium The vestibule of the ear is the central part of the inner ear labyrinth, as used in the vestibular system The vestibulocochlear nerve connects this to the brain The vestibule of larynx is between the epiglottis and rima glottidis The aortic vestibule is the part of the left ventricle of the heart just below the aortic valve The vestibule of mouth is the space between the lips or cheek and teeth Architecture main Vestibule architecture an entryway a Lobby room lobby , entrance hall, or passage between the outer door and the interior of a building an enclosed area between two railroad car s a Waiting room reception area a footstool a toilet a bar stool an antechamber an entry room a laundry chute gravity chute in an American apartment building a passageway acting as an airlock between two environments Also known as a mud room in the American Home Association Related a covered section between the outer opening and inner opening of a tent , typically used for the storage of boots, packs and small equipment Other The Vestibules formerly known as Radio Free Vestibule , a Canadian comedy troupe Teh Vestibule, an IGN message board Vestibulum wasp Vestibulum wasp , a wasp genus The Vestibule of Hell is the first layer in the Divine Comedy Articulated bus The jet bridge , a connector from an airport gate to an airplane, allowing passengers to board and disembark. d ... more details
Infobox Bone Name Body of hyoid bone Latin corpus ossis hyoidei GraySubject 45 GrayPage 177 Image Gray186.png Caption Hyoid bone . Anterior surface. Enlarged. Image2 Caption2 Precursor Origins Insertions Articulations MeshName MeshNumber DorlandsPre c 56 DorlandsSuf 12260648 The body of hyoid bone or central part is of a quadrilateral form. Its anterior surface is convex and directed forward and upward. It is crossed in its upper half by a well marked transverse ridge with a slight downward convexity, and in many cases a vertical median ridge divides it into two lateral halves. The portion of the vertical ridge above the transverse line is present in a majority of specimens, but the lower portion is evident only in rare cases. The anterior surface gives insertion to the geniohyoid muscle in the greater part of its extent both above and below the transverse ridge a portion of the origin of the hyoglossus muscle hyoglossus notches the lateral margin of the geniohyoid attachment. Below the transverse ridge the mylohyoid muscle mylohyoid , sternohyoid muscle sternohyoid , and omohyoid muscle omohyoid are inserted. The Posterior anatomy posterior surface is smooth, concave, directed backward and downward, and separated from the epiglottis by the hyothyroid membrane and a quantity of loose areolar tissue a Bursa anatomy bursa intervenes between it and the hyothyroid membrane. The superior border is rounded, and gives attachment to the hyothyroid membrane and some aponeurosis aponeurotic fibers of the genioglossus muscle genioglossus . The inferior border affords insertion medially to the sternohyoid and laterally to the omohyoid and occasionally a portion of the thyrohyoid muscle thyrohyoid . It also gives attachment to the Levator glandulae thyreoideae, when this muscle is present. In early life the lateral borders are connected to the greater cornua by synchondroses after middle life usually by bony union. See also hyoid bone External links RocheLexicon 25420.000 1 Norm ... more details
Wiktionary A sphincter is an Anatomy anatomical structure, a circular muscle that normally maintains constriction of a natural body passage or orifice and which relaxes as required by normal physiological functioning. Sphincters are found in many animals there are over 50 types in the human body , some microscopically small, in particular the millions of precapillary sphincter s. ref name vander 6th cite book last Vander first Arthur title Human Physiology The Mechanism of Body Function Sixth Edition, International Edition year 1994 publisher McGraw Hill, Inc isbn 0 07 113761 0 pages 437 440 coauthors Sherman, James & Luciano, Dorothy ref Functions Sphincters prove effective in the mediation of the entrance or release of liquids and fluids this is evident, for example, in the Blowhole biology blowhole s of numerous marine mammals. Many sphincters are used every day in the normal course of digestion and vision. For example, the epiglottis is used to seal off the Vertebrate trachea windpipe when swallowing, so as to ensure that no food or liquid enters the lungs. The function of the epiglottis is a typical example of an involuntary action by the body. Classifications Sphincters can be further classified into functional and anatomical sphincters Anatomical sphincters have a localised and often circular muscle thickening to facilitate their action as a sphincter. Functional sphincters do not have this localised muscle thickening and achieve their sphincteric action indirectly through muscle contraction around extrinsic or within intrinsic the structure. Sphincters can also be voluntarily or involuntarily controlled Voluntary sphincters are supplied by Somatic nervous system somatic nerves . Involuntary sphincters are stimulated by Autonomic nervous system autonomic nerves . Examples File Ileocaecal sphincter.png thumb right 180px Diagram of Ileocecal sphincter Ileocaecal valve and sphincter The sphincter pupillae , or pupillary sphincter , belonging to the Iris anatomy ... more details
motion of the tongue forces the epiglottis over the glottis opening to prevent swallowed ... thyroid , cricoid cartilage cricoid and epiglottis . The paired cartilages of the larynx are the arytenoid ... wall of the larynx. It is attached to the top of trachea. Epiglottis A large, spoon shaped piece ... widens it to receive food and drink elevation of the larynx causes the epiglottis to move down and form ..., only mammals possess a true epiglottis, although a flap of non cartilagenous mucosa is found in a similar ... more details
Infobox IPA above Pharyngealized ipa symbol ipa symbol2 Pharyngealization is a secondary articulation of consonant s or vowel s by which the pharynx or epiglottis is constricted during the articulation of the sound. IPA symbols In the International Phonetic Alphabet , pharyngealization can be indicated by one of two methods A tilde or swung dash through the letter indicates either velarization or pharyngealization, as in IPA dark l , the pharyngealized equivalent of IPA l , or The symbol IPA a superscript voiced pharyngeal fricative or reversed glottal stop after the letter standing for the pharyngealized consonant, as in IPA t the pharyngealized equivalent of IPA t . ref It is easily confused in print with IPA , as they look almost identical, and both are coded as superscript variants of IPA . ref Usage Arabic language Arabic and Syriac language Syriac use phonemic secondary pharyngealization for the Emphatic consonant emphatic coronal consonant s. Ubykh language Ubykh , a Northwest Caucasian languages Northwest Caucasian language formerly spoken in Russia and Turkey , uses pharyngealization in 14 pharyngealized consonants. Chilcotin language Chilcotin has pharyngealized consonants that trigger pharyngealization of vowels. Many languages e.g. Salishan languages Salishan , Sahaptian languages Sahaptian in the Plateau culture area of North America also have pharyngealization processes triggered by pharyngeal or pharyngealized consonants that affect vowels. The Khoisan language Taa language Taa or X has pharyngealized vowels that contrast phonemically with voiced, breathy, and epiglottalized vowels. ref Harvcoltxt Ladefoged 2005 p 183 ref This feature of X is represented in its orthography by a tilde beneath the respective pharyngealized vowel. In Danish language Danish many of the vowel phonemes have distinct pharyngealized qualities, and in the Tuu languages epiglottalized vowels are phonemic. For many languages, pharyngealization is generally associa ... more details
Refimprove date December 2009 Infobox IPA ipa number 173 decimal1 673 ipa image Xsampa greaterthanslash.png x sampa > kirshenbaum The epiglottal plosive is a type of consonant al sound, used in some Speech communication spoken language s. The symbol in the International Phonetic Alphabet that represents this sound is IPA . Features Image Places of articulation.svg thumb left 150px The epiglottis is labelled as 12 in this diagram. Features of the epiglottal plosive plosive epiglottal It has no defined phonation , although it is typically voiceless, which means it is produced without vibrations of the vocal cords. Voiced epiglottal stops tend toward being epiglottal flap s. oral central lateral pulmonic Occurrence class wikitable colspan 2 Language Word International Phonetic Alphabet IPA Meaning Notes colspan 2 align center Dahalo language Dahalo ref Harvcoltxt Maddieson Spaji Sands Ladefoged 1993 ref colspan 2 align center IPA ndo o align center floor colspan 2 align center Haida language Haida align center Latin alphabet Unicode g antl align center IPA nt align center water colspan 2 align center Jah Hut language Jah Hut ref name Minor syllabic vocalism in Senoic languages. Diffloth, Gerard.1976a. Minor syllably vocalism in Senoic languages. In Jenner et al., Vol. I, pp 229 2480 ref colspan 2 align center IPA h align center tree See also List of phonetics topics References reflist Bibliography citation last Maddieson first Ian authorlink Ian Maddieson last2 Spaji first2 Sini a last3 Sands first3 Bonny last4 Ladefoged first4 Peter authorlink4 Peter Ladefoged year 1993 chapter Phonetic structures of Dahalo editor last Maddieson editor first Ian title UCLA working papers in phonetics Fieldwork studies of targeted languages volume 84 pages 25 65 place Los Angeles publisher The UCLA Phonetics Laboratory Group IPA navigation DEFAULTSORT Epiglottal Plosive Category Consonants als Epiglottaler Plosiv br Kensonenn ankoue dre serri cs Epiglot ln ploziva fr Co ... more details
Place of articulation An epiglottal consonant is a consonant that is articulated with the aryepiglottic folds see larynx against the epiglottis . They are occasionally called aryepiglottal consonants . Epiglottal consonants in the IPA The epiglottal consonants identified by the International Phonetic Alphabet are class wikitable rowspan 2 IPA rowspan 2 Description colspan 4 Example Language Orthography IPA Meaning Image Xsampa greaterthanslash.png voiceless epiglottal plosive Aghul language Aghul IPA ja Citation needed date January 2010 center Image Xsampa lessthanslash.png voiced epiglottal fricative or approximant Arabic language Arabic lang ar IPA t to have supper Image Xsampa Hslash.png voiceless epiglottal fricative Aghul language Aghul IPA m whey A voiced epiglottal plosive may not be possible. When one becomes voiced intervocalically in Dahalo language Dahalo , for example, it becomes a flap consonant tap . Although traditionally placed in the fricative consonant fricative row of the IPA chart, IPA is usually an approximant consonant approximant . The IPA symbol itself is ambiguous, but no language has a distinct fricative and approximant at this place of articulation. Sometimes the lowering diacritic is used to specify that the manner is approximant IPA . Epiglottal trill s are quite common for epiglottals, that is , but this can usually be considered a phonemic plosive or a fricative, with the trill being phonetic detail. The IPA has no symbol for this, though IPA is sometimes seen in the literature. Characteristics Epiglottals are not known from many languages. However, this may partially be an effect of the difficulty European language speaking linguists have in recognizing them. On several occasions, when supposedly pharyngeal consonant s were actually measured, they turned out to be epiglottals. This was the case for Dahalo language Dahalo , for example. Epiglottals are primarily known from the Mideast in the Semitic languages and ... more details
Infobox Anatomy Name Tunica intima Latin GraySubject 133 GrayPage 498 Image Illu artery.jpg Caption Artery wall Image2 Gray448.png Caption2 Transverse section through a small artery and vein of the mucous membrane of the epiglottis of a child. Tunica intima is at e System MeshName Tunica Intima MeshNumber A07.231.330.800 Code TerminologiaHistologica 3 09 02.0.01003 The tunica intima or just intima is the innermost layer of an artery or vein . It is made up of one layer of endothelial cell s and is supported by an internal elastic lamina . The endothelial cells are in direct contact with the blood flow . The inner coat tunica intima can be separated from the middle tunica media by a little maceration , or it may be stripped off in small pieces but, on account of its friability, it cannot be separated as a complete membrane. It is a fine, transparent, colorless structure which is highly elastic, and, after death, is commonly corrugated into longitudinal wrinkles. The inner coat consists of A layer of pavement endothelium , the cells of which are polygonal, oval, or fusiform, and have very distinct round or oval nuclei. This endothelium is brought into view most distinctly by staining with silver nitrate . A subendothelial layer, consisting of delicate connective tissue with branched cells lying in the interspaces of the tissue in arteries of less than 2 mm. in diameter the subendothelial layer consists of a single stratum of stellate cells , and the connective tissue is only largely developed in vessels of a considerable size. An elastic or fenestrated layer, which consists of a membrane containing a net work of elastic fibers, having principally a longitudinal direction, and in which, under the microscope , small elongated apertures or perforations may be seen, giving it a fenestrated appearance. It was therefore called by Henle the fenestrated membrane. This membrane forms the chief thickness of the inner coat, and can be separated into several layers, some of which ... more details
Infobox Anatomy Name Tunica media Latin tunica media vasorum GraySubject 133 GrayPage 498 Image Illu artery.jpg Caption Artery wall Image2 Gray448.png Caption2 Transverse section through a small artery and vein of the mucous membrane of the epiglottis of a child. Tunica media is at m System MeshName Tunica Media MeshNumber A02.633.570.491.800 DorlandsPre t 22 DorlandsSuf 12831907 Code TerminologiaHistologica 3 09 02.0.01007 The tunica media or just media middle coat is the middle layer of an artery or vein . ref BUHistology 05102loa ref It lies between the tunica intima on the inside and the tunica externa on the outside. Artery Tunica media is made up of smooth muscle cells and elastic tissue . It lies between the tunica intima on the inside and the tunica externa on the outside. The middle coat tunica media is distinguished from the inner tunica intima by its color and by the transverse arrangement of its fibers. In the smaller arteries it consists principally of plain muscle fibers in fine bundles, arranged in wikt lamella lamell and disposed circularly around the vessel. These lamell vary in number according to the size of the vessel the smallest arteries having only a single layer, ref BUHistology 21103loa ref and those slightly larger three or four layers. It is to this coat that the thickness of the wall of the artery is mainly due. In the larger arteries , as the iliac artery iliac , Femoral artery femoral , and carotid , elastic fibers unite to form lamell which alternate with the layers of muscular fibers these lamell are united to one another by elastic fibers which pass between the muscular bundles, and are connected with the fenestrated membrane of the inner coat. In the largest arteries , as the aorta ref OklahomaHistology 66 02 Aorta ref and Brachiocephalic artery brachiocephalic , the amount of elastic tissue is very considerable in these vessels a few bundles of white connective tissue also have been found in the middle coat. The muscle fiber ce ... more details
Infobox Muscle Name PAGENAME Latin musculi linguae GraySubject GrayPage Image Gray1019.png Caption Lateral view of the tongue, with extrinsic muscles highlighted. Image2 Gray1020.png Caption2 Coronal section of tongue, showing intrinsic muscles Precursor System Artery Vein Nerve Lymph MeshName MeshNumber Origin Insertion Artery Blood Action The muscles of tongue can be divided into intrinsic and extrinsic groups. The intrinsic muscles lie entirely within the tongue , while the extrinsic muscles attach the tongue to other structures. The extrinsic muscles reposition the tongue, while the intrinsic muscles alter the shape of the tongue for talking and swallowing. Extrinsic muscles Extrinsic tongue muscles, by definition, originate from structures outside the tongue and insert into the tongue. The four paired extrinsic muscles protrude, retract, depress, and elevate the tongue class wikitable Muscle From Nerve Function Genioglossus muscle human mandible mandible hypoglossal nerve protrudes the tongue as well as depressing its center. Hyoglossus muscle hyoid bone hypoglossal nerve depresses the tongue. Styloglossus muscle temporal styloid process styloid process hypoglossal nerve elevates and retracts the tongue. Palatoglossus muscle palatine aponeurosis pharyngeal branch of vagus nerve depresses the soft palate , moves the palatoglossal fold towards the midline, and elevates the back of the tongue. Intrinsic muscles Four paired intrinsic muscles of the tongue originate and insert within the tongue, running along its length. These muscles alter the shape of the tongue by lengthening and shortening it, curling and uncurling its apex and edges, and flattening and rounding its surface. ref Drake, R. et al. Gray s Anatomy for Students, Elsevier, 2005. ISBN 0 443 06612 4 ref The superior longitudinal muscle runs along the superior surface of the tongue under the mucous membrane, and elevates, assists in retraction of, or deviates the tip of the tongue. It originates near the ... more details
s atmosphere air pass through the pharynx, a flap of connective tissue called the epiglottis ... it is the part of the throat that connects to the esophagus. It lies inferior to the epiglottis ... more details
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