for the cartoon character Buster Gonad unreferenced date November 2008 The gonad is the organ that makes gamete s. The gonads in males are the testes and the gonads in females are the ovaries . The product, gametes, are haploid germ cells. For example, spermatozoon and ovum egg cells are gametes. Although scientifically, the term gonad can refer to either male gonads testes or female gonads ovary ovaries , the vernacular , or slang , use of gonads or nads usually only refers to the testes. Regulation The gonads are controlled hormonally by luteinizing hormone LH and follicle stimulating hormone FSH secreted by the anterior pituitary gland . This secretion is, in turn, controlled by the hypothalamus gonadotropin releasing hormone . Development Main Development of the gonads Gonads start developing as a common Anlage biology anlage , in the form of gonadal ridge s, and only later are differentiated to male or female sex organ s. The presence of the SRY gene , located on the Y chromosome and encoding the testis determining factor , determines male sexual differentiation. In the absence of the SRY gene from the Y chromosome, the female sex ovaries instead of testis will develop. The development of gonads is a part of the development of the urinary and reproductive organs . See also Gonadosomatic index Female reproductive system Male reproductive system Endocrine system anatomy Category Glands Category Endocrine system Category Reproductive system ca G nada da Gonade de Gonade et Sugun re es G nada eu Gonada fr Gonade io Gonado is Kynkirtill it Gonadi lv Dzimumdziedzeri lt Lytin liauka mk nl Gonade no Gonade nn Kj nnskjertel pl Gonada pt G nada ru simple Gonad sl Spolna leza fi Sukupuolirauhaset sv K nsk rtel tl Gonad ng tao th uk zh ... more details
Buster Gonad is the name of a cartoon character in the United Kingdom British comic Viz comics Viz . It involves the surrealism surreal adventures of the boy with unfeasibly large testicles . During a storm, Buster s gonad s were zapped by cosmic ray s which enlarged them to an enormous size. Buster s gonads are so large, in fact, that he needs a wheelbarrow to carry them around. ref http nuosh.com images buster gonad.jpg ref As a result, they are impossible to conceal and are therefore out on open display for everyone to see and marvel at. The plot lines vary, but are always bizarre, revolving around Buster s outstanding physical attributes being a blessing or a curse. For example, in one episode Buster climbs a tree whereupon some children standing below mistake his hairy scrotum for giant horse chestnuts , deciding to pelt it with sticks and stones in order to knock it down so they can play conkers . Moments later, a passing farmer attempts to help the children by blasting the horse chestnuts with his double barrelled shotgun . Finally, an endangered species of bird decides to build a nest on Buster s scrotum and lays eggs in it. It is illegal to disturb the rare bird s nest, so poor Buster is forced to stay up the tree for the next few weeks until the eggs hatch and the fledglings have left the nest. In December 1987 Viz released a 7 inch single entitled Bags of Fun With Buster ... Air Force featured Buster Gonad nose art . ref http sepecat.info images 03 desertstorm1 ref Vintage framed copies of Buster Gonad cartoon from the 1980s are now collectable items. ref http tonyvalderama.com ... and Eminem s biography. ref http books.google.co.uk books?id p3RmIcJSsfYC&dq 22Buster Gonad 22&num 100&ie ISO 8859 1 ref References reflist 2 External links http www.viz.co.uk Buster Gonad at viz.co.uk see Archive http members.lycos.co.uk scaryduck blog2 bustergonad.gif Image 1 of Buster Gonad http chalkhills.org cgi bin img?images non BagsOfFun.jpg Image 2 of Buster Gonad http sepecat.info images ... more details
Refimprove date December 2009 Orphan date December 2009 The aorta gonad mesonephros is a region of embryo nic germ layer Mesoderm mesoderm that develops during embryonic development from the para aortic splanchnopleura in chick, mouse and human embryos. It has been suggested that this area, in particular the ventral wall of the Dorsum biology dorsal aorta , is one of the primary origins of the definitive haematopoietic stem cell . The aorta gonad mesonephros AGM lies between the notochord and the somatic mesoderm and extends from the umbilicus to the anterior limb bud of the embryo. ref name pmid19570846 cite journal author Peeters M, Ottersbach K, Bollerot K, Orelio C, de Bruijn M, Wijgerde M, Dzierzak E title Ventral embryonic tissues and Hedgehog proteins induce early AGM hematopoietic stem cell development journal Development volume 136 issue 15 pages 2613 21 year 2009 month August pmid 19570846 pmc 2709067 doi 10.1242 dev.034728 ref The AGM region contains the dorsal aorta, genital ... the umbilicus to the anterior limb bud of the embryo. The aorta gonad mesonephros region contains ... gonad mesonephros region, identified as haematogenic endothelium differentiate into hematopoietic ... haematopoietic stem cells long term repopulating units HSC RUs role of the aorta gonad mesonephros ... function of the aorta gonad mesonephros region is its role in definitive haematopoiesis. Definitive ... stem cells in the adult hematopoietic system. The aorta gonad mesonephros region has been shown ... site, the number of CFU S was much greater in the aorta gonad mesonephros region. LTR HSC activity was also found in the aorta gonad mesonephros region at a slightly earlier time than in the yolk sac ... gonad mesonephros region was able to initiate and expand definitive haematopoietic stem cell activity ... case in human embryos, where they are first detected at day 27 in the aorta gonad mesonephros region ... involved in regulating Runx1. References reflist DEFAULTSORT Aorta Gonad Mesonephros Category Embryology ... more details
The gonadosomatic index , abbreviated as GSI , is the calculation of the gonad mass as a proportion of the total body mass . It is represented by the formula GSI Gonad Weight Total Tissue Weight x 100 Barber & Blake 2006 . ref name FD http acronyms.thefreedictionary.com Gonadosomatic Index Gonadosomatic Index , acronyms.thefreedictionary.com ref It is a tool for measuring the sexual maturity of animals in correlation to ovary development and testes development. References Reflist Measurement stub Category Measurement Category Zoology tl Talatuntunang gonadosomatiko ... more details
An associated reproductive patterns is a seasonal change in reproduction which is highly correlated with a change in gonads gonad and associated hormones hormone . ref Alcock, John. 2005. Animal Behavior. Sinauer Associates. ISBN 0 87893 005 1 ref See also Disassociated reproductive pattern References Reflist Citizendium biology stub Category Reproduction Orphan date July 2009 ... more details
Infobox Artery Name PAGENAME Latin GraySubject GrayPage Image Gray531.png Caption The abdominal aorta and its branches. Image2 Caption2 BranchFrom abdominal aorta BranchTo Vein gonadal vein Supplies gonad s MeshName MeshNumber DorlandsPre a 62 DorlandsSuf 12158196 The term gonadal artery is a generic term for a paired artery , with one arising from the abdominal aorta for each gonad . Specifically, it can refer to the testicular artery in males the ovarian artery in females circulatory stub Arteries of abdomen Category Arteries of the abdomen ar ... more details
Hypergonadism is a condition where there is a hyperfunction of the gonad s. ref name dorl It can manifest as precocious puberty , and is caused by abnormally high levels of testosterone or estrogen , crucial hormones for sexual intercourse . In some cases, it may be caused by a tumor , which can be malignant but mostly benign . Anabolic steroids may also be a major cause of high testosterone estrogen levels. Symptoms High libido Early puberty Rapid growth adolescents Large amounts of hair on the face, near genitals, in armpits References reflist refs ref name dorl DorlandsDict four 000050976 hypergonadism ref Endocrine pathology Category Reproductive system Category Endocrine gonad disorders medicine stub ... more details
Nads may refer to National Advanced Driving Simulator Neutron Acceptance Diagram Shading Sodium lauryl sulfate , NaDS slang for Gonad s nickname of Spanish tennis player Rafael Nadal The name of a hair removal cream company based in Australia disambig Short pages monitor This long comment was added to the page to prevent it being listed on Special Shortpages. It and the accompanying monitoring template were generated via Template Longcomment. Please do not remove the monitor template without removing the comment as well. ... more details
Orphan date September 2008 Coelomic epithelium refers to the epithelium that lines the surface of the body wall and abdomen abdominal organs. It constitutes the outermost layer of the male and female gonad s, thus forming the Germinal epithelium female germinal epithelium of the female or Germinal epithelium male of the male . It is also called the germinal epithelium of Waldeyer or sometimes the superficial epithelial cells in embryology . It is often encountered in the medical setting as an important source of various types of ovarian cancer , primary peritoneal serous cancer and endometriosis coelomic metaplasia . Category Abdomen medicine stub ... more details
File Splenogonadal fusion.JPG thumb Intra operative gross photograph of the spleen attached to the left testis in a 1 year old boy with splenogonadal fusion Splenogonadal fusion is a rare congenital malformation that involves an abnormal connection between the spleen and the gonad . It manifests itself as a mass consisting of splenic and testicular or ovarian tissue. Splenogonadal fusion has been classified into two types continuous, where there is a direct connection between spleen and gonad and discontinuous, where ectopic splenic tissue is attached to the gonad, but there is no connection to the spleen. Although this malformation affects both sexes, it is more common in males. It is rarely diagnosed pre operatively, and surgery is usually necessary to determine if it is malignant. Historically, there have been several cases where a testicular swelling has resulted in an unnecessary orchiectomy due to suspicion of a testicular neoplasm . Anyway, the splenic tissue can be severed from the tunica albuginea testicles tunica albuginea in order to prevent an orchiectomy. Roughly, only 150 cases of splenogonadal fusion have been documented. The anomaly was first mentioned by pathologist Eugen Bostroem in 1883, but it wasn t until 1889 when a Dr. Pommer described the malformation in detail. References http arpa.allenpress.com arpaonline ?request get document&doi 10.1043 2F0003 9985 2002 126 3C1222 NGCTAI 3E2.0.CO 3B2 Nonseminomatous Germ Cell Tumor Arising in Splenogonadal Fusion http www.ncbi.nlm.nih.gov sites entrez?cmd Retrieve&db PubMed&list uids 16080949&dopt AbstractPlus NCBI, Splenogonadal fusion case presentation and literature review Category Tissues disease stub pl Po czenie ledzionowo mosznowe ... more details
refimprove date November 2009 Taxobox status DD status system iucn3.1 regnum Animal ia phylum Chordate Chordata classis Hagfish Myxini ordo Myxiniformes familia Myxinidae genus Eptatretus species E. bischoffii binomial Eptatretus bischoffii binomial authority A. Schneider, 1880 ref ITIS id 622250 taxon Eptatretus bischoffii ref Eptatretus bischoffii is a common hagfish of the genus Eptatretus . Its maximum length is convert 55 cm in . It lives in a demersal , non migratory, marine habitat with its depth range between 8 50 m. It can survive in only temperate zones. These organisms are found in the South Pacific Ocean Pacific , mainly, Chile . It is harmless to humans. The mode of reproduction in this kind of organism is external reproduction external . The copulatory organs are absent. The gonad s of hagfishes are situated in the peritoneal cavity . The ovary is found in the anterior portion of the gonad, and the testis is found in the posterior part. The animal becomes female if the cranial part of the gonad develops or male if the caudal part undergoes differentiation. If none develops, then the animal becomes sterile. If both anterior and posterior parts develop, then the animal becomes a hermaphroditism functional hermaphrodite . However, hermaphroditism being characterised as functional needs to be validated by more reproduction studies. The eggs develop in the demersal areas. The shape of the eggs are elongated. The egg contains a single micropyle micropylar opening located at the animal pole. It is situated at the bottom of a micropylar cup which lies between the anchor filament s. The single filaments are convert 3.2 4.9 mm in long and have an anchor shaped apical end. The number of filaments varies around 50 but is always smaller on the vegetative end. On both ends of laid eggs, the filaments are enveloped by a gel like matrix intertwined with large cytoskeleton cytoskeletal biopolymer s keratin like intermediate filaments of possible holocrine origin. ... more details
Wolffian ducts. Genes Associated with the Genital Ridge Genes associated with the developing gonad can be categorized into those that form the sexually indifferent gonad, those that determine whether the indifferent gonad will differentiate as male or female, and those that promote differentiation into male or female parts. Genes that form the sexually indifferent gonad are SF1 gene SF1 and WT1 . Genes ... in the developing gonad. The other genes have roles in development that aren t exclusively sex related .... By E12, sexual differentiation of the gonad is apparent, indicating that genes involved in the formation of the bipotential gonad is expressed before E10.5 and E12. Before E10.5, Dmrt1 is expressed .... Sry expression is expressed exclusively in the developming gonad, lacking a presence in any ... more details
Unreferenced stub auto yes date December 2009 Infobox Vein Name Gonadal vein Latin GraySubject GrayPage Image Gray1120.png Caption The relations of the viscera and large vessels of the abdomen. Image2 Caption2 DrainsFrom Source DrainsTo Artery gonadal artery MeshName MeshNumber DorlandsPre v 04 DorlandsSuf 12847847 In medicine , gonadal vein refers to the blood vessel that carrying blood away from the gonad testis, ovary toward the heart . Females ovarian vein Males testicular vein The left gonadal vein drains into the left renal vein , whereas the right drains directly into the inferior vena cava Veins of the torso DEFAULTSORT Gonadal Vein Category Veins of the torso Circulatory stub ar pt Veia gonadal ... more details
Taxobox name Patiriella parvivipara regnum Animalia phylum Echinodermata subphylum Eleutherozoa classis Asteroidea ordo Spinulosida subordo Leptognathina familia Asterinidae genus Patiriella species Patiriella parvivipara species authority Dartnall, 1972 Patiriella parvivipara is an Australian species of sea star . It is of very small size measuring up to 1 cm and yellow orange colour. It is self fertilizing hermaphrodite and incubates its young in the gonad s ref Grzimek s Animal Life Encyclopedia, vol 1, Gale Cengage 2003 p.378 ref . References reflist echinoderm stub Category Asteroidea az Patiriella parvivipara ... more details
Taxobox name Eleutheriidae regnum Animal ia subregnum Eumetazoa phylum Cnidaria subphylum Medusozoa classis Hydrozoa subclassis Leptolinae ordo Anthomedusae subordo Capitata Hydrozoa Capitata infraordo Tubulariida familia Eleutheriidae familia authority Frederick Stratten Russell Russell , 1953 subdivision ranks Genera subdivision 2, see text Eleutheriidae is a family biology family of Anthomedusae anthomedusan hydrozoa ns. These simple animal s have a circular mouth surrounded by a variable number of tentacle s, each with adhesive apparatus. The gonad s are located in a dorsum biology dorsal brood pouch . There are a mere 2 genera Eleutheria Hydrozoa Eleutheria Staurocladia References http data.gbif.org species browse taxon 11317633 Eleutheriidae at GBIF http www.ices.dk products fiche Plankton SHEET153.PDF Zooplankton identification sheet Category Anthomedusae Medusozoa stub pt Eleutheriidae ... more details
Infobox Disease Name Gonadal tissue neoplasm Image Caption DiseasesDB ICD10 ICD9 ICDO OMIM MedlinePlus eMedicineSubj eMedicineTopic MeshID D018309 A gonadal tissue neoplasm is a tumor having any histology characteristic of cells or tissues giving rise to the gonad s. These tissues arise from the sex cord and stromal cell s. The tumor may be derived from these tissues, or produce them. Although the tumor is composed of gonadal tissue, it is not necessarily located in an ovary or testicle . A gonadal tissue neoplasm should not be confused with a urogenital neoplasm , though the two topics are often studied together. The embryology of the gonads is only indirectly related to the embryology of the external genitals and urinary system. See also Gonadoblastoma Sex cord gonadal stromal tumour Gonadal tumors, paraganglioma, glomus, nevi and melanomas Category Dermal and subcutaneous growths Dermal growth stub ... more details
Sinus tubercle is the proliferation of endoderm induced by the paramesonephric ducts . The uterovaginal primoridium , which is a fusion of the caudal ends of paramesonephric ducts contacts the dorsal wall of the urogenital sinus and, induces the formation of the sinus tubercle. This occurs in both sexes In the female the mesonephric duct loses all association with the gonad and, disappears. It gives rise to the sino vaginal bulb s and, when it later becomes solid it is referred to as the vaginal plate . It likewise gives rise to the hymen , which eventually breaks down. In the males, the sinus tubercle gives rise to the seminal colliculus . References Moore Persaud, Medical embryology 2003 Development of urinary and reproductive systems Category Developmental biology Category Embryology ... more details
orphan date August 2010 Hirsuties is the growth in a woman of coarse terminal hair in a male distribution. Causes Hereditary causes and a wide variety of growth patterns across and within ethnic groups can lead to this condition presenting. It can also be caused by a number of endocrine imbalances, including Cushings syndrome and polycystic ovaries. Iatrogenic causes include anabolic steroid s, androgen s, corticosteroid s, danazol , phenytoin and psoralen . See also Hypertrichosis References ABC of Dermatology, 5th edition, Buxton, BMJ 2003, page 55. Category Endocrine gonad disorders ... more details
of intact host energy spent on reproduction includes not just gonad s and gamete s but also secondary ... Annelid Oligochaete Tubifex tubifex Destroys gonad ref name parasitoid74 Protist Haplosporidia Urosporidium ... Bivalvia Destroys gonad, host grows larger ref name parasitoid74 Platyhelminthes Cestoda Pisces Cyprinidae Destroys gonad, behavioral changes ref name parasitoid74 Arthropoda Isopoda Hemioniscus balani ... PDF doi 10.1007 BF00776413 ref Arthropoda Cirripedia Sacculina Arthropoda Decapoda crabs Destroys gonad ... more details
Unreferenced stub type animal auto yes date December 2009 automatic taxobox taxon Monogononta name Monogononts image Polyarthra EPA.jpg image caption Polyarthra image width 240px authority Plate, 1889 subdivision ranks Orders subdivision Flosculariida br Ploimida br Collothecida The monogononts Monogononta are a class of rotifer s, found mostly in freshwater but also in soil and marine environments. They include both free swimming and Sessility zoology sessile forms. Monogononts generally have a reduced corona, and each individual has a single gonad , which gives the group its name. Males are generally smaller than females, and are produced only during certain times of the year, with females otherwise reproducing through parthenogenesis . External links Wikispecies Monogononta Category Rotifers Category Microbiology Microbiology stub ca Monogonont de Monogononta ko pt Monogononta sk Monogononta ... more details
Gonadarche refers to the earliest gonad al changes of puberty . ref citebook title Handbook of Psychology first1 Irving B. last1 Weiner first2 Donald K. last2 Freedheim first3 John A. last3 Schinka first4 Wayne F. last4 Velicer first5 Richard M. last5 Lerner publisher John Wiley and Sons year 2003 isbn 0 471 38405 4 pages 298 ref In response to pituitary gland pituitary gonadotropin s, the ovary ovaries in girls and the testis testes in boys begin to grow and increase the production of the sex steroid s, especially estradiol and testosterone . In boys, testicular enlargement is the first physical sign of gonadarche, and usually of puberty . In girls, ovarian growth cannot be directly seen, so thelarche and growth acceleration are usually the first evidence of gonadarche. Gonadarche should be contrasted with adrenarche . Gonadarche indicates that true central puberty has begun, while adrenarche is an independent maturational process only loosely associated with complete puberty. References refs Reproductive physiology Category Developmental biology Category Pediatrics Category Sexuality and age es Gonadarqu a ... more details
Taxobox name Phlebobranchia image Ascidia.JPG image caption Ascidia regnum Animal ia phylum Chordata subphylum Tunicata classis Ascidiacea ordo Enterogona subordo Phlebobranchia subdivision ranks Families subdivision Agnesiidae br Ascidiidae br Cionidae br Corellidae br Diazonidae br Hypobythiidae br Perophoridae Phlebobranchia is a suborder of sea squirts in the order Enterogona . The group includes both colonial and solitary animals. They are distinguished from other sea squirts by the presence of longitudinal vessels in the pharyngeal basket and by the gonad s being surrounded by a loop of gut. The posterior part of the abdomen is absent, and many species also lack the epicardial cavity that surrounds the heart and other internal organs in many other sea squirts. References cite book author Barnes, Robert D. year 1982 title Invertebrate Zoology publisher Holt Saunders International location Philadelphia, PA page 1042 isbn 0 03 056747 5 chordate stub Commons category Category Ascidiacea de Phlebobranchia it Phlebobranchia la Phlebobranchia ... more details
wiktionarypar AGM AGM may refer to Military and navy Air to ground missile , a missile designed to be launched from military aircraft Artillery Gun Module , an air portable self propelled howitzer Missile Range Instrumentation Ship US Navy hull classification symbol , a special type of ships for launching and tracking missiles and rockets Science and technology AGM postulates , a set of conditions describing knowledge and belief revision Absorbent glass mat , a type of lead acid battery with fine glass fibers Aorta gonad mesonephros , a part of chick, mouse and human embryos Arithmetic geometric mean , a function of two positive numbers that is between the arithmetic mean and the geometric mean Chlorocebus , specifically African green monkey Miscellaneous Active Gaming Media , a game localization company Annual general meeting , a meeting held every year Assistant general manager , a descriptive term for certain executives in a business operation Award of Garden Merit , an award made to garden plants by the British Royal Horticultural Society Federal Agricultural Mortgage Corporation NYSE symbol , a loan and mortgage company Tasiilaq Heliport IATA airport code , in Tasiilaq, Greenland disambig de AGM fr AGM it AGM ja AGM ro AGM ... more details
Refimprove date December 2009 Hyperandrogenism is a medical condition symptom? characterized by excessive production and or secretion of androgen s. It is one of the primary symptoms of polycystic ovary syndrome . In such cases, it presents with symptoms such as acne or hyperseborrhea, is frequent in adolescent girls and is often associated with irregular menstrual cycles. In most instances, these symptoms are transient and only reflect the immaturity of the hypothalamic pituitary ovarian axis during the first years following menarche . ref name AMN cite web author Christine Cortet Rudelli, Didier Dewailly title Diagnosis of Hyperandrogenism in Female Adolescents work Hyperandrogenism in Adolescent Girls url http www.health.am gyneco more diagnosis of hyperandrogenism in female year 2006 month Sep 21 publisher Armenian Health Network, Health.am accessdate 2006 11 21 ref Approximately three quarters of patients with PCOS by the diagnostic criteria of NIH NICHD 1990 have evidence of hyperandrogenemia, with free testosterone being the single most predictive marker with 60 of patients demonstrating supranormal levels. ref name huang cite journal author Huang A, Brennan K, Azziz R title Prevalence of hyperandrogenemia in the polycystic ovary syndrome diagnosed by the National Institutes of Health 1990 criteria journal Fertil. Steril. volume 93 issue 6 pages 1938 41 year 2010 month April pmid 19249030 doi 10.1016 j.fertnstert.2008.12.138 url pmc 2859983 ref References Reflist Category Androgens Category Endocrine gonad disorders Category Gynaecologic disorder Symptom stub sv Hyperandrogenism ... more details
Non tropic hormones are hormones that directly stimulate target cells to induce effects. This differs from the Tropic hormone tropic hormones , which act on another endocrine gland . Most endocrine glands, such as the gonad s, pancreas , and adrenal gland s, produce non tropic hormones. Those released from the pituitary gland in the brain include Oxytocin posterior lobe stimulates milk letdown in females. Prolactin PRL anterior lobe is remarkable for the diversity of its effects among vertebrate species. The varied roles suggest that prolactin is an ancient hormone with functions that have diversified during the evolution of vertebrate groups. Melanocyte stimulating hormone MSH intermediate lobe regulates the activity of pigment containing cells in the skins of some amphibians. In mammals, MSH act on neurons in the brain, inhibiting hunger. Growth hormone GH primary stress hormone ref cite book last Cambell first Neil A. authorlink coauthors Jane B. Reece title Biology publisher Sinauer Associates edition 6th isbn 0 321 27045 2 ref See also Endocrine system Tropic hormone References Reflist Sources Biology 12 McGrawHill Ryerson Textbook External links http www.mcgrawhill.ca school booksites biology 12 index.php biology stub Category Hormones ... more details
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