anatomy

Question 1

ankle DTR root

Answer 1

S1

Question 2

patella DTR roots

Answer 2

L2

Question 3

triceps DTR roots

Answer 3

mostly C7, also C8

Question 4

biceps and brachioradialis DTR roots

Answer 4

C5 and C6

Question 5

triceps muscle nerve root

Answer 5

C7 mostly, also C6

Question 6

rhomboids muscle nerve root

Answer 6

C5

Question 7

dermatome at level of knee

Answer 7

L4

Question 8

innervates tibialis anterior

Answer 8

deep peroneal nerve - L5

Question 9

foot drop - only dorsiflexion is weak

Answer 9

deep peroneal

Question 10

foot drop - dorsiflexion and eversion is weak

Answer 10

common peroneal

Question 11

foot drop: dorsiflexion, eversion, and inversion all weak

Answer 11

L5 radiculopathy (tibialis posterior affected)

Question 12

foot drop: can’t dorsiflex, plantarflex, evert OR invert. all are weak

Answer 12

sciatic nerve - now look at other leg muscles to further localize

Question 13

toes and sole of foot sensation

Answer 13

tibial nerve

Question 14

sensation to webbed space between first 2 toes

Answer 14

deep peroneal

Question 15

sensation to lateral side of foot

Answer 15

sural nerve (suralateral)

Question 16

saphenous nerve

Answer 16

sensation to medial knee/calf (comes off femoral)
remember calf rhymes with saph

Question 17

nerve for toe flexion, plantar flexion

Answer 17

tibial nerve

Question 18

nerve for toe extension, dorsiflexion

Answer 18

deep peroneal

Question 19

nerve for knee extension

Answer 19

femoral nerve L2-L4

Question 20

nerve for knee flexion

Answer 20

sciatic nerve S1-S2

Question 21

nerve for hip flexion

Answer 21

L1-L2 directly innervate iliopsoas

Question 22

nerve for hip extension

Answer 22

inferior gluteal nerve - L5-S2, gluteus maximus

Question 23

nerve for hip adduction

Answer 23

obturator - L2-L4

Question 24

nerve for hip abduction

Answer 24

superior gluteal nerve L4-L5 - gluteus medius and minimus, TFL