part_of
part of
part of
develops from
develops from
male reproductive system
testis
http://upload.wikimedia.org/wikipedia/commons/c/c3/Gray1144.png
orchis
EHDAA2:0002007
BILA:0000124
EHDAA:8146
(...) 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]
uberon
The testes are descended in metatherian and eutherian mammals, first transabdominally, then inguinoscrotally
MA:0000411
MIAA:0000132
testiculus
FBbt:00004928
testes
CALOHA:TS-1030
EV:0100102
EMAPA:17972
TAO:0000598
gonad of male reproductive system
MESH:D013737
ZFA:0000598
UBERON:0000473
testicular
galen:Testis
NCIT:C12412
Wikipedia:Testis
GAID:396
FMA:7210
VHOG:0000252
XAO:0000157
HAO:0001007
EFO:0000984
SCTID:181431007
MAT:0000132
WBbt:0006794
testicle
A gonad of a male animal. A gonad produces and releases sperm.
male gonad
BTO:0001363
gonad of male genitalia
UMLS:C0039597
Male reproductive organ.[TAO]
AAO:0000606
BSA:0000085
UBERON:0002117
gonad
ovary
male reproductive organ
indifferent gonad