Nervous week 2: Spinal Nerves

Question 1

Major peripheral nerves:

Phrenic nerve

Answer 1

Plexus:
Cervical

Compartment/muscle:
Diaphragm

Major action(s):
Inspiration

Question 2

Major peripheral nerves:

Axillary nerve

Answer 2

Plexus:
Brachial

Compartment/muscle:
Deltoid

Major action(s):
Arm abduction

Question 3

Major peripheral nerves:

Radial nerve

Answer 3

Plexus:
Brachial

Compartment/muscle:
Posterior arm
Posterior forearm

Major action(s):
Forearm extension
Wrist extension
Finger extension

Question 4

Major peripheral nerves:

Musculocutaneous nerve

Answer 4

Plexus:
Brachial

Compartment/muscle:
Anterior arm

Major action(s):
Forearm flexion

Question 5

Major peripheral nerves:

Median Nerve

Answer 5

Plexus:
Brachial

Compartment/muscle:
Anterior forearm, lateral side

Major action(s):
Wrist flexion
Wrist abduction Finger flexion

Question 6

Major peripheral nerves:

Ulnar nerve

Answer 6

Plexus:
Brachial

Compartment/muscle:
Anterior forearm, medial side

Major action(s):
Wrist flexion
Wrist adduction Finger flexion

Question 7

Major peripheral nerves:

Femoral nerve

Answer 7

Plexus:
Lumbar

Compartment/muscle:
Anterior Thigh

Major action(s):
knee extension
thigh flexion

Question 8

Major peripheral nerves:

Obturator nerve

Answer 8

Plexus:
Lumbar

Compartment/muscle:
Medial Thigh

Major action(s):
Thigh adduction

Question 9

What is the sciatic nerve composed of?

Answer 9

Tibial nerve

common fibular nerve

Question 10

Major peripheral nerves:

Tibial nerve

Answer 10

Plexus:
Sacral

Compartment/muscle:
Posterior thigh
Posterior leg

Major action(s):
Thigh extension
Knee flexion
Plantar flexion 
Toe flexion

Question 11

Major peripheral nerves:

Common fibular nerve

Answer 11

Plexus:
Sacral

Compartment/muscle:
Anterior leg
Lateral leg

Major action(s):
Thigh extension
Knee flexion
Plantarflexion
Toe flexion