Penis

Question 1

root of penis lies in the:

Answer 1

Perineum

Question 2

body of penis lies in the:

Answer 2

free (outside the body)

Question 3

Root of penis consists of

Answer 3

• 2 crura
• Bulb

Question 4

one Crus of root is attached to:

Answer 4

• pubic arch
• Makes up posterior aspect of corpora Cavernosa

Question 5

crura of the root are covered by:

Answer 5

ischiocavernosus muscle

Question 6

bulb of penis is attached to:

Answer 6

• Perineal membrane
• makes up posterior end of corpus spongiosum

Question 7

bulb of penis is covered by:

Answer 7

bulbospongiosus muscle

Question 8

Bulb of penis is pierced by:

Answer 8

• Spongy urethra
• bulbo-urethral glands

Question 9

Body of penis consists of:

Answer 9

• 2 corpa cavernosa: on dorsal aspect
• 1 Corpus spongiosum: on ventral aspect, containing spongy urethra

Question 10

enumerate ligaments of the penis

Answer 10

• Fundiform ligament (sling-like): arises from linea alba & splits into 2 parts on each side of the penis
• suspensory ligament of penis: Arises from symphysis pubis and attaches to deep fascia of penis at dorsum & sides

Question 11

Arterial supply of penis

Answer 11

3 branches of internal pudendal A:

2 deep Arteries of penis:
* each runs in corpus cavernosum
* Supplies blood during erection

2 arteries of bulb:
* runs inside bulb of penis

2 Dorsal A. of penis:
* lateral to deep dorsal vein of penis
* supplies skin & fascia covering penis

Question 12

Venous drainage of penis

Answer 12

Superficial dorsal vein:
* runs superficial to penis of fascia
* Drains into great saphenous vein

Deep dorsal Vein:
* Drains into prostatic venous plexus through gap between transverse perineal ligament & arcute pubic ligament

Question 13

Nerve supply of penis

Answer 13

Pudendal N –> Right & left dorsal Nerves of penis
* runs lateral to dorsal A (most lateral strucutre inside fascia of penis)