A: The corpus luteum releases progesterone which prepares the uterus for pregnancy (and causes the number of peg cells to increase).

D: The corpus luteum (not the follicle) produces progesterone.

A: Luteinising hormone targets the interstitial cells of the testes inducing them to secrete testosterone. (In women, LH helps with menstrual cycle, ovulation and the formation of the corpus luteum. The corpus luteum then releases progesterone, a hormone necessary to maintain pregnancy).

A: The vas deferens (=ductus deferens) begin at the epididymis and end at the ejaculatory duct in the prostate.

A: The ducts from the seminal glands join with the vas deferens to become the ejaculatory ducts and enter the prostate. There they both join the urethra which then exits the prostate.

C: The corpus luteum (which develops from the follicle after ovulation) produces progesterone.

B: Seminiferous tubules are in the testes so should be before the epididymis and vas deferens; ejaculatory ducts must be after the vas deferens.

D: The sperm are physically mature when they enter the epididymis but need to be capacitated by fluid from the seminal glands and the fallopian tube’s peg cells. Most of the volume of the ejaculate comes from the seminal glands.

C: Fluid from the “peg” cells of the Fallopian tube assist in the capacitation of sperm allowing them to fertilise the egg.

C: The thecal cells produce androgens (androstenedione) which diffuse to the granulosa cells which convert androgens to estrogens.

A: Somatic cells contain 46 chromosomes, whereas a sperm cell has 23. It has either an X or a Y chromosome.

B: GnRH stimulates the anterior pituitary gland to release both LH and FSH, which are two gonadotropins. They act on the gonads (testes and ovaries) and control gamete and sex hormone production.

A: LH targets Leydig (interstitial) cells to produce testosterone. FSH targets Sertoli (nurse/sustentacular) cells which (in the presence of testosterone)
promote spermiogenesis.

B: Luteinising hormone stimulates ovulation and the formation of the corpus luteum.

D: The ejaculatory ducts commence where the ducts of the seminal glands join the vas deferens and end where the vas deferens join with the urethra.

D: The sperm meets the ovum in the ampulla of the fallopian tube (=uterine tube) where fertilisation occurs, facilitated by the secretions of the peg cells.

D: The listed structures produce the respective hormones.

D: Secondary sex characteristics are those that develop after puberty, that is, not present at birth.