Penis: ligaments, skin, neurovascular Flashcards Preview

Repro anatomy > Penis: ligaments, skin, neurovascular > Flashcards

Flashcards in Penis: ligaments, skin, neurovascular Deck (30)
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1

what is the root of the penis supported by?

by two ligaments

2

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

attach root of penis to the surrounding structures

3

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

Suspensory ligament
Fundiform ligament

4

what is the suspensory ligament?

a condensation of deep fascia

5

what does the suspensory ligament connect?

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

6

what is the fundiform ligament?

a condensation of abdominal subcutaneous tissue

7

where does the fundiform ligament run from?

It runs down from the linea alba

8

what does the fundiform ligament surround?

surrounding the penis like a sling

9

where does the fundiform ligament attach to?

attaching to the pubic symphysis

10

what is significant about the skin of the penis?

more heavily pigmented than that of the rest of the body

11

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

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

12

what is the prepuce?

(foreskin) is a double layer of skin and fascia

13

where is the prepuce located?

at the neck of the glans

14

what does the prepuce cover?

It covers the glans to a variable extent

15

what is the prepuce connected to?

connected to the skin of the glans by the frenulum

16

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

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

17

what is the preputial sac?

The potential space between the glans and prepuce

18

where does the penis receive its arterial supply from?

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

19

what are the arterial supply of the penis branches of?

internal pudendal artery

20

where does the internal pudendal artery arise from?

from the anterior division of the internal iliac artery

21

venus blood is drained from the penis by what?

two veins

22

what are the cavernous spaces drained by?

by the deep dorsal vein of the penis

23

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

into the prostatic venous plexus

24

what does the superficial dorsal veins supply?

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

25

what is the penis innervated by?

by S2-S4 spinal cord segments and spinal ganglia

26

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

by the dorsal nerve of the penis

27

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

a branch of the pudendal nerve

28

what is parasympathetic innervation to the penis carried by?

by cavernous nerves

29

where is the cavernous nerves from?

from the prostatic nerve plexus

30

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

for the vascular changes which cause erection