Male Reproductive System - External Genetalia

Question 1

What are the external male genetalia?

Answer 1

Scrotum
Penis

Question 2

What is the scrotum?

Answer 2

Cutaneous pouch, containing testis, epididymis and lower part of the spermatic cord

Question 3

What are the layers of the scrotum?

Answer 3

External to Internal:
Skin (thin, sweat glands & vascular)
Dartos muscle (smooth, replaces fatty layer of superficial fascia is anterior abdominal wall)
External Spermatic fascia
Cremaster muscle (skeletal)
Internal spermatic fascia

Question 4

How many erectile bodies does the penis have?

Answer 4

3

Question 5

What surrounds the erectile bodies of the penis?

Answer 5

Tough tunica albuginea

Question 6

Names of erectile bodies of the penis

Answer 6

One corpus spongiosum
Two corpora cavernosa

Question 7

Arterial supply of the penis

Answer 7

The internal pudendal artery gives off three branches which supply the penis

Question 8

Branches of the internal pudendal artery

Answer 8

Deep artery of the penis
Dorsal artery of the penis
Artery of the bulb of the penis

Question 9

Veins of the penis

Answer 9

Dorsal veins, superficial and deep

Question 10

Nerve supply of the penis

Answer 10

The sensory nerve supply: Dorsal nerve of the penis and the ilioinguinal nerve. Muscles of the root of the penis are supplied by the perineal branch of the pudendal nerve
Autonomic nerves are derived from the pelvic plexus via the prostatic plexus

Question 11

Lymphatic drainage of penis

Answer 11

Lymphatics from the glans drain into the deep inguinal nodes also called gland of Cloquet
Lymphatics from the rest of the penis drain into the superficial inguinal lymph nodes