Anatomy

Question 1

where do the superior, middle, and inferior rectal veins drain to?

Answer 1

above pectinate line: middle and superior - inferior mesenteric vein (which drains to portal)

below pectinate line: inferior - inferior rectal to the internal iliac vein (drains to systemic or caval venous system)

Question 2

arteries that go the the anus above and below the pectinate line

Answer 2

above: from the inferior mesenteric artery
below: from the internal iliac

Question 3

what artery does the obturator come off of?

Answer 3

anterior division of the internal iliac

Question 4

the ureter passes under what artery last.

it then passes over this artery

Answer 4

uterine

over the vaginal artery (in females)

Question 5

what happens if you clamp the ureture during a historecotmy

Answer 5

hydronephrosis

Question 6

what artery exits the pelvis between the lumbosacral trunk and S1

Answer 6

superior gluteal artery

Question 7

what arteries inter the anterior sacral foramina to supply the skin and mescles over the sacrum

Answer 7

the lateral sacral arteries

Question 8

branches in order off the posterior division of the internal iliac

Answer 8

iliolumbar
lateral sacral
superior gluteal

Question 9

ureteric orifice has what sphincter and is under what type of control?

Answer 9

internal ureteric sphincter under autonomic control

Question 10

what forms the voluntary external sphincter of the bladder?

Answer 10

urogenital diaphram

Question 11

what forms serrations around the inner part of the anus

embryologic origins of above and below it?

Answer 11

pectinate line

everything above came from primitive gut tube

below: proctodeum

Question 12

nervous control above and below the pectinate line

Answer 12

above: autonomic
below: somatic (controllable)

Question 13

what is the pelvic diaphragm “anchored” onto

Answer 13

obturator internus

Question 14

two muscles that make up the pelvic diaphragm

Answer 14

A: levator ani

P: coccygeus

Question 15

what does the obturator nerve and artery suppy

Answer 15

adductor muscles of the thigh

Question 16

first artery of the anterior division of the internal iliac to exit the greater sciatic foramen

Answer 16

internal pudendal

Question 17

second artery of the anterior division of the internal iliac to exit the greater sciatic foramen

Answer 17

inferior gluteal

Question 18

ischial spine gives rise to this muscle

Answer 18

coccygeus

Question 19

isthmus

Answer 19

the first part of the fallopian tube

Question 20

ampulla

Answer 20

the second part of the fallopian tube, where it gets wider

Question 21

the region of the prostate where most hypertrophy occurs

Answer 21

transitional zone

Question 22

where does most prostate cancer occur

Answer 22

peripheral