The pediatric nurse explains to the student that production of testosterone by the male embryo causes what to occur?
A.
Creation of a gonad
B.
Formation of the male genital tract
C.
Production of spermatozoa
D.
Stimulation of external genitalia growth
ANS: B
The mesonephric ducts evolve into the male genital tract due to the influence of testosterone in the 7th or 8th week of gestation. A gonad is the first reproductive structure formed. Production of spermatozoa doesn't occur until puberty. The growth of external genitalia does not begin until the 12th week of gestation.
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