Neuro nerve innervations

Question 1

which nerve is responsible for wrist extension

Answer 1

radial nerve

Question 2

a wrist drop suggests which nerve is damaged

Answer 2

radial nerve

Question 3

damage to which nerve causes weakness of dorsiflexion and foot eversion

Answer 3

common peroneal nerve also known as common fibular nerve

Question 4

which nerve supples sensation to the dorsum of the foot

Answer 4

common peroneal nerve

Question 5

which nerve is responsible for flexion of arm

Answer 5

musculocutaneous nerve

Question 6

which nerve is responsible for extension of arm

Answer 6

radial nerve

Question 7

which nerve is responsible for flexion of the wrist and digits

Answer 7

median nerve

Question 8

which nerve is the flexor carpi ulnaris innervated by

Answer 8

ulnar nerve

Question 9

name 2 branches of the sciatic nerve

Answer 9

tibial nerve (larger, medial)
common fibular nerve (smaller, lateral)

Question 10

in trendeleberg gait, will the hip drop occur on the contralateral or ipsilateral side to the weak glute muscles

Answer 10

contralateral

Question 11

what innervates the anterior compartment of thigh and what are the myotomes

Answer 11

femoral nerve

L2, L3, L4

Question 12

what innervates the medial compartment of thigh and what are the myotomes

Answer 12

obturator nerve

L2, L3, L4

Question 13

what innervates the posterior compartment of thigh and what are the myotomes

Answer 13

tibial division of the sciatic nerve

L5, S1, S2

Question 14

what innervates the posterior compartment of the lower leg

Answer 14

tibial nerve

Question 15

what action do the posterior compartment of the leg allow

Answer 15

plantar flexion

Question 16

which compartment of lower leg allows dorsiflexion and toe extension

Answer 16

anterior compartment

Question 17

which nerve innervates the anterior compartment of the lower leg and what are the myotomes

Answer 17

deep fibular nerve

L4, L5

Question 18

which leg compartment is responsible for foot eversion and weak plantar flexion

Answer 18

the lateral compartment of leg

Question 19

which nerve innervates the lateral compartment of leg

Answer 19

superficial fibular nerve

L5, S1, S2

Question 20

which nerve is damaged if patient has a foot drop

Answer 20

deep fibular nerve also known as the common peroneal nerve

loss/absence of dorsiflexion (anterior compartment of leg responsible for dorsiflexion)

Question 21

which roots are tested in the biceps reflex

Answer 21

C5, C6 (pick up sticks)

Question 22

which roots are tested in the triceps reflex

Answer 22

C7, C8

Question 23

which roots are tested in the ankle reflex

Answer 23

S1, S2

Question 24

which roots are tested in the knee reflex

Answer 24

L3, L4

Question 25

what is another name for the common fibular nerve

Answer 25

the common peroneal nerve