Upper Peripheral Nerves

What dermatome is sensory for the back of the head?

• C2

• C3

• C4

• C5

What dermatome is sensory for the neck?

• C3

• C4

• C5

• C6

What dermatome is sensory for the upper shoulders?

• C4

• C5

• T1

• C3

What belongs in the motor part of the cervical plexus?

• deep neck muscles

• superior anterior neck muscles

• levator scapulae (C3, C4)

• Trapezius and sternocleidomastoid- spinal accessory nerve

• Deep leg muscles

These make up the phrenic nerve and they are a part of the diaphragm:

• C3

• C4

• C5

• C6

• C7

The _____________ is formed from the anterior rami of spinal segments C5, C6, C7, C8, and T1

• Brachial plexus

• neck plexus

• Thoracic plexus

• Lumbar plexus

What spinal levels make up the upper trunk of the brachial plexus?

• C5

• C6

• C7

• C8

What spinal level makes up the middle trunk of the brachial plexus?

• C7

• C6

• C8

• C5

What spinal level makes up the lower trunk of the brachial plexus?

• C8

• T1

• C7

• C6

The trunks of the brachial plexus divide into the ____________________________________

• Frontal and lateral division

• Medial and lateral division

• Anterior and posterior division

• none of these