Cremaster muscle:

1. elevates the testes during exposure to cold.

2. surrounds testes on all sides.

3. plays no role in thermoregulation.

4. pushes sperms into the rete testes.

Sperm-producing cells have unique antigens yet they are not attacked by the immune cells because of:

Spermatic cord does not include:

1. testicular artery.

2. lymphatic vessels.

3. ductus deferens.

4. ejaculatory duct.

Cryptorchidism may lead to sterility due to:

1. relatively high internal body temperature.

2. excessive production of estrogen.

3. lack of testosterone.

4. non-function of the SRY gene.

In males, the secondary sexual characters develop in response to:

In males, FSH:

1. inhibits progesterone.

2. initiates testosterone production.

3. increases protein synthesis.

4. increase spermatogenesis.

The Papanicolaou test [PAP smear] is a method of screening used to detect potentially pre-cancerous and cancerous processes in the

1. urethra.

2. ovary.

3. cervix.

4. ovaries.

Menstrual irregularities may be seen in women athletes due to:

The endometrium is maintained in a healthy condition in the latter half of the pregnancy by:

1. FSH and LH

2. human chorionic gonadotropin

3. Ovarian steroids

4. placental estrogen and progesterone

The endometrium is the most developed:

1. during the menstrual phase.

2. just after the menstrual phase.

3. just after ovulation.

4. late in the postovulatory phase.