Exam 20: The Reproductive System

Which statement about testosterone is incorrect?

When is the secretion of progesterone at a low level?

During the female sexual response, the lower third of the vagina expands to accommodate entry of the penis.

Ejaculation is a two-part reflex involving (1) contraction of the smooth muscle of the reproductive tract and accessory sex organs (emission), and (2) contraction of the skeletal muscles at the base of the penis (expulsion).

Match the three levels of sexual distinction between males and females by writing the appropriate letters in the blanks. a.Apparent anatomic sex of the individual b.Combination of sex chromosomes at the time of conception c.Development of testes or ovaries -Phenotypic sex

If menstruation began on April 15, and the woman has a normal 28-day ovarian cycle, what date would be closest to the beginning of the ovary's luteal phase?

Parasympathetic stimulation is required for erection, whereas sympathetic stimulation is necessary for ejaculation.

Indicate from what primitive reproductive tissue each structure in question differentiates using the answer code below. a.genital tubercle b.urethral folds c.genital swellings d.Wolffian ducts e.Müllerian ducts -Clitoris

Testosterone promotes closure of the epiphyseal plate.

Indicate the chromosomal composition of each of the following stages of developing sperm by using the answer code below. a.Contains a full set of 23 pairs of chromosomes b.Contains a full set of 23 pairs of doubled chromosomes c.Contains a half set of doubled chromosomes d.Contains a set of 23 single unpaired chromosomes -Spermatogonium