test three deck 2, lecture 16

Question 1

what is the distribution for the lumbar, and sacral plexus?

Answer 1

lumbar is T12-L4, Sacral is L4-S4

Question 2

what muscle groups do the ventral divisions off the sacral plexus supply?

Answer 2

External rotators and Pudental, pelvic splanchic, posterior femoral cutaneous, anoccocygeal, tibial portion of sciatic

Question 3

what muscle groups do the dorsal divisions off the sacral plexus supply?

Answer 3

supperior gluteal, inferior gluteal n, common fibular sciatic, post fem

Question 4

where do the cluneal nerves innervate?

Answer 4

buttocks, sup= l1-l4 high, med s1-s4, inf off common fibular nerve,

Question 5

where do most sacral nerves exit? exeptions?

Answer 5

greater sciatic foramen, expt splanchic, branchis to levani

Question 6

what allows the expansion of the femora vein in the femoral sheath?

Answer 6

the femoral ring

Question 7

what muscle divides the obturator nerve into a and p divisions?

Answer 7

the adductor brevis

Question 8

which obturator nerve has sensory innervation of the medial thigh

Answer 8

anterior

Question 9

common peroneal n splits into three branches:

Answer 9

lateral sural cutaneous, superficial and deep branches

Question 10

where does the peroneal nerve split into sup and deep branches?

Answer 10

at the fibular head

Question 11

what does the superficial peroneal nerve innervate?

Answer 11

two eversion peroneal muscles, longus and brevus and the entire dorsium of the foot except space between 1 and 2 toes (this = the deep peroneal)

Question 12

the inferior, open edge of acetabulum is closed by what ligament?

Answer 12

the transverse ligament

Question 13

with what structure does the head of the femur articulate?

Answer 13

the lunate

Question 14

which ligament of the hip resists extension?

Answer 14

the y ligament (anteriorly)

Question 15

what hip ligament resists abduction? also extension

Answer 15

pubofemoral

Question 16

which hip ligament resists adduction and internal rotation?

Answer 16

ishiofemoral (deep, only goes to neck)

Question 17

three hip ligaments are loose during what movement?

Answer 17

hip flexion, loose during hip extension

Question 18

what are sources of blood to hip?

Answer 18

from deep fem: med and lat circumflex, from obturator, also from sup and inf gluteal a

Question 19

trochanteric bursitis might cause what symptoms?

Answer 19

pain lying on side, seen in repetitive motions like ice skating running

Question 20

what does the angle of inclination determine

Answer 20

the effectiveness of hip abductors, length of limb