ORG ANA: Surface Anatomy of Pelvis and Sacral Plexus

Question 1

level of iliac crest

Answer 1

L4

Question 2

relate the bladder in children below 6 yo

Answer 2

abdominal organ bc capacity of pelvic cavity id not enough to contain it

Question 3

loc of neck of bladder

Answer 3

below level of symhpysis pubis

Question 4

where can the uterus be palpated towards end of 2nd month of pregnancy

Answer 4

lower part of abdominal wall

Question 5

explain progressive enlargement of uterus

Answer 5

fundus rises to umbilicus until xiphoid by 9th month

Question 6

what type of joint is the sacroiliac

Answer 6

plane

Question 7

what supports sacroiliac joint

Answer 7

posterior, anterior sacroiliac and interosseous sacroiliac ligaments

Question 8

function of sacroiliac joint

Answer 8

transmits weight of body from VC to pelvis

Question 9

what type of joint is symphysis pubis

Answer 9

cartilaginous - no movement

Question 10

what type of joint is sacrococcygeal joint

Answer 10

cartiliaginous - flex-ext

betw last sacral and first coccyx

Question 11

vertebral root of sciatic

Answer 11

L4-S3

Question 12

vertebral root of sup. gluteal

Answer 12

L4-S1

Question 13

vertebral root of inf. gluteal

Answer 13

L5-S2

Question 14

vertebral root of n. to quad fem

Answer 14

L4-S1

Question 14

vertebral root of n. to obturator internus

Answer 14

L5-S2

Question 15

vertebral root of posterior cutaneous n. of thigh

Answer 15

S1-S3

Question 16

vertebral root of pudendal

Answer 16

S2-S4

Question 17

vertebral root of n. to piriformis

Answer 17

S1-2

Question 18

what forms pelvic splanchnic nerves

Answer 18

2nd to 4th sacral nerves and synapse w inferior hypogastric plexus

Question 19

what does pelvic splanchnic nerves supply

Answer 19

large bowel from left colic flexure to upper half of anal canal

Question 20

where is superior hypogastric plexus

Answer 20

sacral promontory

Question 21

what does inferior hypogastric plexus supply

Answer 21

rectum, base of bladder and vagina

Question 22

what does sciatic nerve supply

Answer 22

becomes

tibial nerve: posterior compartment of leg
peroneal: anterior and lateral compartment

Question 23

what does nerve to quadratus fem supply

Answer 23

gemellus inferior and quadratus fmeoris

Question 24

what does superior gluteal nerve supply

Answer 24

gluts medius and minimus, TFL

Question 25

what does nerve to obturator internus supply

Answer 25

gemellus superior and obturator internus

Question 26

what does inferior gluteal nerve supply

Answer 26

gluteus maximus

Question 27

what does nerve to piriformis supply

Answer 27

piriformis

Question 28

what does posterior cutaneous nerve of thigh supply

Answer 28

skin of thigh

Question 29

what does pudendal nerve supply

Answer 29

bulbospongiosus
ischiocavernosus
sphincter urethrae
superficial and deep transverse perineal