Nerves of the Neck

Question 1

Where does the cervical plexus lie?

Answer 1

• Lies anteromedial to levator scapulae and middle scalene muscles and deep to SCM

Question 2

Cervical Plexus:

• Superficial branches are sensory (cutaneous) and pass _______
  o Emerge around the middle of the posterior border of ____ at the nerve point of the neck
• Deep branches are motor and pass _________

Answer 2

posteriorly
SCM
anteromedially

Question 3

What are the two branches of the neck? (2)

Answer 3

Cutaneous and motor.

Question 4

Lesser occipital branch
Origin:
Distribution:

Answer 4

• Anterior ramus of C2
• Skin of the neck and scalp posterosuperior to the auricle

Question 5

Greater auricular branch
Origin:
Distribution:

Answer 5

• Anterior rami of C2&C3
• Skin over the parotid gland, mastoid process and auricle

Question 6

Transverse cervical
Origin:
Distribution:

Answer 6

• Anterior rami of C2&C3
• Divides into superior and inferior branches to supply skin of anterior cervical region

Question 7

Supraclavicular nerves
Origin:
Distribution:

Answer 7

• Anterior rami of C3&C4
• Skin over the shoulder

Question 8

Ansa cervicalis (2)
Origin:
Distribution:

Answer 8

Question 9

Phrenic
Origin:
Distribution:

Answer 9

• Anterior rami of C3-C5 (Chiefly C4)
• Runs posterior to subclavian v. and anterior to internal thoracic a. and enters thorax

Question 10

Cranial Nerves in the Neck: (4)

Answer 10

Question 11

Cranial Nerves in the Neck:
Glossopharyngeal
Course:
Branches:

Answer 11

Question 12

Cranial Nerves in the Neck:
Vagus
Course:
Branches:

Answer 12

Question 13

Cranial Nerves in the Neck:
Spinal accessory
Course:
Branches:

Answer 13

Question 14

Cranial Nerves in the Neck:
Hypoglossal
Course:
Branches:

Answer 14