Which of the following cannot be exclusively because of testosterone?

1. growth of the larynx

2. development of pubic hair

3. growth of the testes

4. growth of the penis

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, parasympathetic and sympathetic stimulation lead respectively to:
1. sterility; impoetnce
2. impotence; sterility
3. erection; ejaculation
4. ejaculation; erection

The testes in the initial months of the development:
1. are found in the abdominal cavity.
2. descend into the scrotum by the end of second month.
3. start spermatogenesis.
4. secretes some LH.

The dilated end of vas deferens are called:
1. corpus
2. seminal vesicle
3. ampulla
4. tubuli recti

The first structure amongst the following to receive sperms would be:
1. vas deferens
2. urethra
3. epididymis
4. seminal vesicle

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.

Identify the source of testosterone in males:
1. seminiferous tubules
2. epididymis
3. Sertoli cells
4. Leydig cells

An unpaired human male accessory gland/duct is:

1. seminal vesicle

2. vas deferens

3. bulbourethral gland

4. prostate gland