Terminology Service for NFDI4Health
testis
Go to external page
http://purl.obolibrary.org/obo/UBERON_0000473
A gonad of a male animal. A gonad produces and releases sperm.
Term info
Label
testis
Subsets
uberon_slim, efo_slim, pheno_slim, vertebrate_core, organ_slim
depicted by
http://upload.wikimedia.org/wikipedia/commons/c/c3/Gray1144.png, http://upload.wikimedia.org/wikipedia/commons/thumb/c/c3/Gray1144.png/200px-Gray1144.png
external definition
Male reproductive organ.[TAO]
has alternative id
UBERON:0002117
has exact synonym
gonad of male reproductive system, male gonad, testicle, gonad of male genitalia
has obo namespace
uberon
has related synonym
testiculus, testes, orchis
has relational adjective
testicular
homologous in
http://purl.obolibrary.org/obo/NCBITaxon_7742
homology notes
(...) while it is likely that Urbilateria lacked a complex somatic reproductive system, it is at present impossible to speculate on whether or not it possessed a true gonad, let alone any other somatic adaptations for reproduction (reference 1); Examination of different vertebrate species shows that the adult gonad is remarkably similar in its morphology across different phylogenetic classes. Surprisingly, however, the cellular and molecular programs employed to create similar organs are not evolutionarily conserved (reference 2).[uncertain][VHOG]
id
UBERON:0000473
imported from
http://purl.obolibrary.org/obo/uberon.owl
taxon notes
The testes are descended in metatherian and eutherian mammals, first transabdominally, then inguinoscrotally