Prostate Structure And Function

Question 1

The prostate is the largest male accessory gland. T/F?

Answer 1

True

Question 2

What is the approximate diameter of the prostate gland?

Answer 2

3cm

Question 3

Where is the prostate gland situated?

Answer 3

Inferior to the urinary bladder, surrounding the beginning of the urethra, the ejaculatory ducts also pass into the prostate gland.

Question 4

Where can the prostate be palpated?

Answer 4

The posterior surface can be palpated through the anterior wall of the rectum.

Question 5

What is the normal weight of the prostate gland?

Answer 5

7-16g

Question 6

What kind of tissue is the prostate gland composed of?

Answer 6

Glandular and fibromuscular tissue

Question 7

What is the purpose of the muscle in the prostate gland?

Answer 7

To help expel semen during ejaculation

Question 8

What is the function of the prostate?

Answer 8

To produce a thin, milky fluid that contributes to around 30% of semen volume

Question 9

What is the function of prostatic fluid?

Answer 9

To aid the viability of sperm
To protect sperm from acidic vaginal secretion
To aid sperm motility

Question 10

Which hormone predominantly regulates the prostate?

Answer 10

Dihydrotestosterone

Question 11

How is testosterone converted to dihydrotestosterone?

Answer 11

By the enzyme 5 alpha-reductase type II.

Question 12

When dihydrotestosterone binds to androgen receptors on the prostate what affect does this have?

Answer 12

Signals the transcription of growth factors that are mitogenic to the epithelial and stromal cells of the prostate?

Question 13

What kind of epithelial cells mainly exist in the prostate?

Answer 13

Pseudostratified columnar cells.