Terminology Service < Semantic Lookup Platform

All terms in UBERON

Label	Id	Description
transverse folds of rectum	UBERON_0017626	[Houston's valves (or transverse folds of rectum) are semi-lunar transverse folds of the rectal wall that protrude into the anal canal. Their use seems to be to support the weight of fecal matter, and prevent its urging toward the anus, which would produce a strong urge to defecate. Although the term rectum means straight, these transverse folds overlap each other during the empty state of the intestine to such an extent that, as Houston remarked, they require considerable maneuvering to conduct an instrument along the canal, as often occurs in sigmoidoscopy and colonoscopy. These folds are about 12 mm. in width and are composed of the circular muscle coat of the rectum. They are usually three in number; sometimes a fourth is found, and occasionally only two are present. One is situated near the commencement of the rectum, on the right side. A second extends inward from the left side of the tube, opposite the middle of the sacrum. A third, the largest and most constant, projects backward from the forepart of the rectum, opposite the fundus of the urinary bladder. When a fourth is present, it is situated nearly 2.5 cm above the anus on the left and posterior wall of the tube.]
cephalic spine	UBERON_0017621	[One of the spines, probably denticle derivatives, occurring singly or in pairs just behind the orbit on the cheek area in some fossil sharks. May have occurred only in males and may have served to hold the female during copulation, e.g. in the Jurassic genera Hybodus, Asteracanthus and Acrodus.]
spine appendage of head	UBERON_0017620	[A spine appendage that is part of a head.]
prepelvic clasper	UBERON_0017623	[A supplemental clasper in Holocephali, in front of the pelvic fin]
3rd arch ectoderm	UBERON_0005661	[An ectoderm that is part of a pharyngeal arch 3.]
4th arch ectoderm	UBERON_0005662	[An ectoderm that is part of a pharyngeal arch 4.]
obsolete intermediate filament	UBERON_0003000	[.]
proximal phalanx of digit 5	UBERON_0014505	[A proximal phalanx that is part of a autopod digit 5 [Automatically generated definition].]
2nd arch ectoderm	UBERON_0005660	[An ectoderm that is part of a pharyngeal arch 2.]
proximal phalanx of digit 4	UBERON_0014504	[A proximal phalanx that is part of a autopod digit 4 [Automatically generated definition].]
peritoneal cavity mesothelium	UBERON_0005669	[A mesothelium that is part of a peritoneal cavity.]
dorsal nucleus of lateral lemniscus	UBERON_0003006
dorsal longitudinal fasciculus of midbrain	UBERON_0003005	[Part of dorsal longitudinal fasciculus located in the midbrain tegmentum]
proximal phalanx of pedal digit 5	UBERON_0004336	[A proximal phalanx that is part of a pedal digit 5 [Automatically generated definition].]
dorsal longitudinal fasciculus of hypothalamus	UBERON_0003008	[Part of dorsal longitudinal fasciculus located within the hypothalamus]
UBERON_0005668	UBERON_0005668
lateral parabrachial nucleus	UBERON_0003007	[The lateral parabrachial nucleus induces thirst by stimulating the median preoptic nucleus. It gets its name from its location relative to the superior cerebellar peduncles, which is also known as the 'brachia conjunctiva'. [WP,unvetted].]
proximal phalanx of digit 1	UBERON_0014501	[A proximal phalanx that is part of a autopod digit 1 [Automatically generated definition].]
proximal phalanx of pedal digit 2	UBERON_0004333	[A proximal phalanx that is part of a pedal digit 2 [Automatically generated definition].]
4th arch endoderm	UBERON_0005666	[An endoderm that is part of a pharyngeal arch 4.]