Spinal Nerves & Their Functions

Question 1

Lumbar L1-L4

Location and cause

Answer 1

Fermoral nerve

Location: Lower ab, butt, and thighs

Cause: can cause inability to extend leg and flex hip

Question 2

The axiallary nerve(in brachial plexus) controlls what. What can it lead to

Answer 2

Deltoid muscle

can cause paralysis and atrophy

Question 3

Whats the 9th cranial nerve

Answer 3

Median Nerve

Question 4

Phrenic Nerve

Answer 4

C1-C4

nerve comes out of C4

Diaphragm and muscles of shoulder & neck

Cause: Respiratory paralysis

Question 5

The Radial nerve(brachial plexus) controlls what, and what does it cause

Answer 5

Controls:Triceps and extensor forearm

Cause: Wrist drop

Question 6

Median Nerve( in brachial plexus) control and cause

Answer 6

Control: Flexor muscles of forearm and some hand muscles

Cause: Claw Hand

Question 7

Sacral Nerve

Location

Pathology:

Cause

Answer 7

L4-L5, S1-S4

Sciatic nerve

Inability to extend hip& flex knee if other nerves in this plexus are affected

Cause: Fot-drop, shuffling gait(shuffling feet)

Question 8

Brachial Plexus

Name the function and nerves invovled

Answer 8

C5-C7

Axillary,radial,median,ulnar nerve

Function: Triceps and extensor of forearm, flexor muscles of arm, many hand muscles, and wrist