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scrotum

^ http://purl.obolibrary.org/obo/UBERON_0001300


the external sac of skin that encloses the testes. It is an extension of the abdomen, and in placentals is located between the penis and anus. [ http://en.wikipedia.org/wiki/Scrotum https://www.worldcat.org/search?q=bn%3A0-683-40008-8 MP:0002669 ]

Term info

database cross reference
Subsets

uberon_slim, pheno_slim

depicted by

http://upload.wikimedia.org/wikipedia/en/thumb/3/3e/HairedHumanScrotum.png/200px-HairedHumanScrotum.png, http://upload.wikimedia.org/wikipedia/commons/a/a6/Scrotum_warm_and_cold.jpg

id

UBERON:0001300

taxon notes

The scrotum of marsupials is not homologous with the scrotum of mammals[ISBN:113945742X], In elephants the testes remain in the abdomen, In hedgehogs the testes remain in the inguinal canal, In marsupials, the scrotum is positioned in the caudal area of the abdomen, in the same position as the pouch in females. It has been suggested that the pouch and marsupial scrotum are sexual homologs, but it is more likely they arise from different primordia in the same morphogenetic field, In marsupials, the scrotum is not homologous to the eutherian scrotum, and development is under the control of X-linked genes, not androgens, In humans and some other mammals, the base of the scrotum becomes covered with pubic hair at puberty