T1Q6 Perineum, Arteries, Veins, and Lymphatics

Question 1

testicular artery

Answer 1

origin: abdominal aorta (embryonic origin)
course: inguinal canal

Question 2

cremasteric arteries

Answer 2

origin: external iliac, inferior epigastric branch
course: accompany the spermatic chord into the scrotum

Question 3

internal pudendal artery

Answer 3

origin: anterior trunk, internal iliac artery
course:
1. leaves through greater sciatic
2. loops around iscial spine
3. re-enters through lesser sciatic foramen
4. courses through pudendal canal
branches:
urethral artery and dorsal artery of penis/ clitoris
perineal> bulb+posterior scrotal+ deep artery of penis/ clitoris

Question 4

external pudendal arteries

Answer 4

origin: femoral artery in the thigh
course: medially and superiorly
supply: supply skin of penis/ scrotum or labia/ clitoris respectively

Question 5

inferior rectal arteries

Answer 5

origin: internal pudendal artery, anal triangle
course: cross ischioanal fossa to
supply: muscle and related skin
* ANASTOMOSE- with middle and superior rectal arteries from the internal iliac artery and inferior mesenteric artery

Question 6

artery of bulb of penis/ vestibule

Answer 6

origin: internal pudendal artery
supply: bulbourethral gland and corpus spongiosum, vestibule, vagina

Question 7

urethral artery

Answer 7

origin: internal pudendal artery
supply: penile urethra and erectile tissue of the glans

Question 8

deep artery of penis

Answer 8

origin: internal pudendal artery
supply: crus and corpus cavernosum of the body

Question 9

dorsal artery of the penis

Answer 9

origin: internal pudendal artery
supply: glans penis and superficial tissues of the penis
* ANATOMOSES- with branches of the deep artery of the penis and urethral artery

Question 10

which vein, in men and women, does not drain into the internal iliac vein?

Answer 10

the deep dorsal vein, drains the glans and copora cavernosa. connects with plexuses surrounding the prostate or urethra (women)

Question 11

external pudendal veins

Answer 11

drains anterior parts of the labia majora or scrotum, connect with the femoral vein in the thigh

Question 12

lymphatics: deep perineum

Answer 12

internal iliac nodes

Question 13

lymphatics: superficial tissues of the penis, clitoris, scrotum, labia majora

Answer 13

superficial inguinal nodes

Question 14

lymphatics: glans, labia minora, terminal inferior end of vagina

Answer 14

deep inguinal nodes and external iliac nodes

Question 15

lymphatics: testes

Answer 15

lateral aortic or lumbar nodes and pre-aortic nodes

*significance: disease of the testes tracks superiorly to nodes high in the posterior abdomen