Examlex
In the brain, nicotinic receptors are located in areas related to __________.
Gubernaculum
Column of tissue that connects the fetal testis to the developing scrotum; involved in testicular descent.
Primary Spermatocyte
Spermatocyte arising by a growth phase from a spermatogonium; gives rise to secondary spermatocytes after the first meiotic division.
Secondary Spermatocyte
Spermatocyte derived from a primary spermatocyte by the first meiotic division; each secondary spermatocyte gives rise by the second meiotic division to two spermatids.
Spermatid
Cell derived from the secondary spermatocyte; gives rise to a spermatozoon.
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