Pelvic Contents - Male Anal Triangle

Question 1

Vans Deferens

What is it?

Answer 1

Muscular tube which travels through the spermatic cord with the spermatic cord, before joining the duct from seminal vesicle to form ejaculatory duct, before joining the urethra in the prostate gland

Question 2

Seminal Vesicles

What do they do?

Answer 2

Secrete a luquid component of semen, and fructose

Question 3

Seminal Vesicles

Blood Supply

Answer 3

Supplied by inferior vesical artery and prostatic artery lower down

Question 4

Prostate Gland

Position

Answer 4

Inferior to bladder, sitting on top of the urogenital diaphragm. In females, the vagina passes through the diaphram but the general position is similar.

Question 5

Lymphatics of the Pelvic Contents

Answer 5

Question 6

Anal Triangle

Answer 6

Question 7

Ischioanal (rectal) Fossa

Contents

Answer 7

Branches of the pudendal nerve, artery, vein and adipose tissue

Question 8

Ischioanal (rectal) Fossa

Boundaries

Answer 8

Walls = ischial tuberosity, rectum/anal canal

Roof = levator ani (pelvic diaphragm)

Floor = skin

Question 9

Anal Canal

Answer 9

Question 10

External Anal Sphincter

Muscle Type

Answer 10

Skeletal (voluntary)

Question 11

External Anal Sphincter

Attachments

Answer 11

Perineal body (chunky bit of tissue at edge of diaphragm) to the anococcygeal ligament

Question 12

External Anal Sphincter

Function

Answer 12

Closes anus (rectal control aided by puborectalis)

Question 13

External Anal Sphincter

Innervation

Answer 13

Pudendal nerve (S2-4) inferior rectal branch

Question 14

Anus

Answer 14

Question 15

Anal Venous Drainage

Answer 15

Question 16

Rectal Arterior Supply

Answer 16

Question 17

Rectal Lymphatics

Answer 17