A gonad of a male animal. A gonad produces and releases sperm. [ http://orcid.org/0000-0002-6601-2165 ]
术语信息
- MESH:D013737
- WBbt:0006794
- VHOG:0000252
- BTO:0001363
- MIAA:0000132
- BILA:0000124
- TAO:0000598
- FMA:7210
- EHDAA:8146
- UMLS:C0039597 (ncithesaurus:Testis)
- EFO:0000984
- HAO:0001007
- BSA:0000085
- NCIT:C12412
- MA:0000411
- GAID:396
- MAT:0000132
- SCTID:181431007
- XAO:0000157
- FBbt:00004928
- AAO:0000606
- EMAPA:17972
- ZFA:0000598
- EHDAA2:0002007
- EV:0100102
- Wikipedia:Testis
- CALOHA:TS-1030
- OpenCyc:Mx4rvVjM25wpEbGdrcN5Y29ycA
- galen:Testis
uberon_slim, efo_slim, pheno_slim, vertebrate_core, organ_slim
(...) 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]
The testes are descended in metatherian and eutherian mammals, first transabdominally, then inguinoscrotally