Anatomy 3: Male Reproductive Anatomy

Question 1

What makes up the trigone?

Answer 1

2 ureteric orfices

Internal urethral orfice

Question 2

What is the bladder wall formed by?

Answer 2

Detrusor muscle

Question 3

What is the role of the neck of the male bladder detrusor muscle?

Answer 3

Forms the internal urethral sphincter muscle which contracts during ejaculation to prevent retrograde ejaculation

Question 4

Explain the development of the testes

Answer 4

• Originate on the posterior wall of the abdominal cavity

- Descend through the anterior abdominal wall via the inguinal canal

Question 5

What is the function of the vas deferens?

Answer 5

Connect the testis to the urethra

Question 6

What is meant by the term “spermatic cord”?

Answer 6

The 3 layers of “coverings’ gained as the testis passes through the inguinal canal and the structures contained within

Question 7

What is a hydrocele?

Answer 7

Excess fluid in the tunica vaginalis

Question 8

Describe the journey of sperm from the testis?

Answer 8

• Produced in the seminiferous tubules
• Pass to the rete testis
• Then into head of epididymis
• Epididmyis becomes the Vas deferens
• The Vas deferens passes superiorly in the spermatic cord to deep inguinal ring
• At deep inguinal ring, the vas deferens turns medially into the pelvis
• Travels posterior to the bladder

Question 9

Where is the epidermis located?

Answer 9

At the posterior aspect of the testis

Question 10

Where can the Vas deferens be palpated?

Answer 10

Within the spermatic cord

Question 11

What is the arterial blood supply to the testis?

Answer 11

Arteries from lateral aspect of abdominal aorta

Question 12

Where does the left testicular vein drain to?

Answer 12

The left testicular vein drains to the left renal vein

Question 13

Where does the right testicular vein drain to?

Answer 13

The IVC

Question 14

Where does the blood supply and drained of the testis pass though?

Answer 14

The deep inguinal ring

Question 15

What is the role of the Bulbourethral (Cowper’s) gland?

Answer 15

Mucus secretion, lubricates urethra and neutralises acidity

Question 16

What is the role of the prostatic urethra?

Answer 16

• Drains urine from the bladder

- Passes semen in ejaculation

Question 17

What is the inferior aspect of the prostate gland in contact with?

Answer 17

The levator ani muscle

Question 18

Where do most cancers of the prostate gland arise?

Answer 18

On the peripheral zone

Question 19

What are the features of the Corpus Cavernosum?

Answer 19

Posterior, both right and left

Transmits the deep arteries of the penis

Question 20

What are the features of the Corpus Spongiosum?

Answer 20

Anteriorly
Transmits the spongy urethra
Expands distally to form the glans penis

Question 21

Where is the Corpus Spongiosum contained?

Answer 21

Within the Bulb of the penis

Question 22

Where is the Corpus Cavernosum contained?

Answer 22

Within the Crura of the Penis (x2 on either side)

Question 23

What is the blood supply to the penis?

Answer 23

• Via the deep arteries of the penis

- Branches from the internal pudendal artery (from internal iliac)

Question 24

What is the blood supply to the scrotum?

Answer 24

Via the internal pudendal and branches from external iliac artery

Question 25

Where is the lymphatic drainage from the scrotum and most of the penis (not glans)?

Answer 25

Drains to the superficial inguinal lymph nodes -superficial fascia of groin

Question 26

Where is the lymphatic drainage from the testes?

Answer 26

Drains to the lumbar nodes- around the abdominal aorta

Question 27

What supplies the Vas Deferens?

Answer 27

The artery to the vas, derived from the superior vesical artery

Question 28

What is the prostate supply and drainage?

Answer 28

-Supplied by branches from the inferior vesicle artery and drained by a plexus of prostatic veins to the internal iliac vein