Anatomy Lecture 7 Lateral Pelvic Wall

Question 1

Name the thin fibrous sheet associated with the obturator foramen.

Answer 1

Obturator membrane

Question 2

What muscle lies superior to the obturator membrane?

Answer 2

Obturator internus

Question 3

What muscle lies medial to obturator internus?

Answer 3

Levator ani

Question 4

What structure is between obturator internus and levator ani?

Answer 4

Tendinous arch of levator ani

Question 5

What deep gluteal muscle that attaches between the femur and the sacrum may be seen on the posterior wall of the pelvic cavity?

Answer 5

Piriformis

Question 6

The gonadal arteries are branches of the _____

Answer 6

Abdominal aorta

Question 7

At what vertebral level do the gonadal arteries leave the abdominal aorta?

Answer 7

L2

Question 8

The superior rectal artery is a continuation of the ______ artery

Answer 8

The superior rectal artery is a continuation of the INFERIOR MESENTERIC artery

Question 9

The majority of the blood supply to the pelvis and perineum arises from the ______ artery

Answer 9

internal iliac artery

Question 10

The external iliac artery courses over the internal aspect of the iliac fossa and then descends anterior to the superior pubic ramus. T or F

Answer 10

True

Question 11

The internal iliac splits into _____

Answer 11

An anterior and posterior divison

Question 12

The posterior division of the internal iliac gives rise to the _____

Answer 12

(Superior and inferior)

Gluteal arteries

Question 13

Is the internal pudendal artery a branch of the anterior or posterior division of the internal iliac?

Answer 13

Anterior division of internal iliac

Question 14

Is the middle rectal artery a branch of the anterior or posterior division of the internal iliac?

Answer 14

Anterior division of internal iliac

Question 15

Are the superior and inferior vesical arteries a branch of the anterior or posterior division of the internal iliac?
(Inferior vesical artery only present in males)

Answer 15

Anterior division of internal iliac

Question 16

The blood supply to the prostate comes from a branch of the ______

Answer 16

Inferior vesical artery

Question 17

Is the obturator artery a branch of the anterior or posterior division of the internal iliac?

Answer 17

Anterior division of internal iliac

Question 18

What is the name of the embryonic remnant of the umbilical artery?

Answer 18

Medial umbilical ligament / fold

Question 19

Is the inferior gluteal artery a branch of the anterior or posterior division of the internal iliac?

Answer 19

Anterior division of internal iliac

Question 20

The urachus aka the ______

Answer 20

Median umbilical fold

Question 21

The inferior epigastric vessels are contained within the _____

Answer 21

Lateral umbilical fold

Question 22

The posterior scrotal artery is a continuation of the _____ which is a branch of the ______

Answer 22

The posterior scrotal artery is a continuation of the PERINEAL ARTERY which is a branch of the INTERNAL PUDENDAL ARTERY

Question 23

The anterior scrotal artery is a branch of the _____

Answer 23

Femoral artery / external iliac

Question 24

The dorsal artery of the penis is a continuation of the ______ and the deep artery of the penis is a branch of the ______.

Answer 24

The dorsal artery of the penis is a continuation of the INTERNAL PUDENDAL and the deep artery of the penis is a branch of the INTERNAL PUDENDAL.

Question 25

Is the uterine artery a branch of the anterior or posterior division of the internal iliac? (only in females)

Answer 25

Anterior division of internal iliac

Question 26

An anastomosis occurs superiorly between the uterine artery and the ______.

Answer 26

An anastomosis occurs between the uterine artery and the OVARIAN ARTERY. (connected via tubal and ovarian branch)

Question 27

An anastomosis occurs inferiorly between the uterine artery and the ______.

Answer 27

An anastomosis occurs between the uterine artery and the VAGINAL ARTERY.

Question 28

In females, what artery connects the uterine artery and the internal pudendal artery?

Answer 28

Vaginal artery

Question 29

In females, the inferior rectal artery, perineal artery, dorsal artery of clitoris and labial arteries are all branches of the _____?

Answer 29

Internal pudendal artery

Question 30

The majority of the veins of the pelvis and perineum drain to the _____.

Answer 30

Internal iliac vein. (Exceptions are superior rectal and lateral sacral).

Question 31

The ureters cross the external iliac. T or F.

Answer 31

False. The right crosses the external iliac. The left is medial and crosses the common iliac.

Question 32

What nerve plexus is on the lateral pelvic wall?

Answer 32

Sacral plexus

Question 33

Which LN do superior pelvic viscera drain to?

Answer 33

External iliac nodes | Then to common iliac > aortic > thoracic duct

Question 34

Which LN do inferior pelvic viscera and deep perineal structures drain to?

Answer 34

Internal iliac nodes | Then to common iliac > aortic > thoracic duct

Question 35

Which LN do superficial perineal structures drain to?

Answer 35

Superficial inguinal nodes

Question 36

Which LN does the cervix drain to?

Answer 36

Internal iliac

Question 37

Which LN does the prostate drain to?

Answer 37

Internal iliac

Question 38

Which LN does the testis drain to?

Answer 38

Superficial inguinal

Question 39

What is trans-peritoneal spread?

Answer 39

Malignancy penetrates through peritoneum and disseminates in peritoneal cavity