Penis: ligaments, skin, neurovascular

Question 1

what is the root of the penis supported by?

Answer 1

by two ligaments

Question 2

what do the ligaments supporting the root of the penis attach to?

Answer 2

attach root of penis to the surrounding structures

Question 3

what are the 2 ligaments supporting the root of the penis?

Answer 3

Suspensory ligament

Fundiform ligament

Question 4

what is the suspensory ligament?

Answer 4

a condensation of deep fascia

Question 5

what does the suspensory ligament connect?

Answer 5

It connects the erectile bodies of the penis to the pubic symphysis

Question 6

what is the fundiform ligament?

Answer 6

a condensation of abdominal subcutaneous tissue

Question 7

where does the fundiform ligament run from?

Answer 7

It runs down from the linea alba

Question 8

what does the fundiform ligament surround?

Answer 8

surrounding the penis like a sling

Question 9

where does the fundiform ligament attach to?

Answer 9

attaching to the pubic symphysis

Question 10

what is significant about the skin of the penis?

Answer 10

more heavily pigmented than that of the rest of the body

Question 11

what does the skin of the penis connect to? by?

Answer 11

It is connected to the underlying tunica albuginea by loose connective tissue

Question 12

what is the prepuce?

Answer 12

(foreskin) is a double layer of skin and fascia

Question 13

where is the prepuce located?

Answer 13

at the neck of the glans

Question 14

what does the prepuce cover?

Answer 14

It covers the glans to a variable extent

Question 15

what is the prepuce connected to?

Answer 15

connected to the skin of the glans by the frenulum

Question 16

what is the frenulum? (connects prepuce to skin of glans)

Answer 16

a median fold of skin on the ventral surface of the penis

Question 17

what is the preputial sac?

Answer 17

The potential space between the glans and prepuce

Question 18

where does the penis receive its arterial supply from?

Answer 18

from three sources:
Dorsal arteries of the penis
Deep arteries of the penis
Bulbourethral artery

Question 19

what are the arterial supply of the penis branches of?

Answer 19

internal pudendal artery

Question 20

where does the internal pudendal artery arise from?

Answer 20

from the anterior division of the internal iliac artery

Question 21

venus blood is drained from the penis by what?

Answer 21

two veins

Question 22

what are the cavernous spaces drained by?

Answer 22

by the deep dorsal vein of the penis

Question 23

what does the deep dorsal vein of the penis empty into?

Answer 23

into the prostatic venous plexus

Question 24

what does the superficial dorsal veins supply?

Answer 24

the superficial structures of the penis, such as the skin and cutaneous tissues

Question 25

what is the penis innervated by?

Answer 25

by S2-S4 spinal cord segments and spinal ganglia

Question 26

what is sensory and sympathetic innervation to the skin and glans penis supplied by?

Answer 26

by the dorsal nerve of the penis

Question 27

what is the dorsal nerve of the penis a branch of?

Answer 27

a branch of the pudendal nerve

Question 28

what is parasympathetic innervation to the penis carried by?

Answer 28

by cavernous nerves

Question 29

where is the cavernous nerves from?

Answer 29

from the prostatic nerve plexus

Question 30

what are the cavernous nerves from the prostatic nerve plexus responsible for?

Answer 30

for the vascular changes which cause erection