7. Neck Angiology and Neurology (Olinger)

Question 1

Answer 1

Question 2

What nerve innervates most of the pharyngeal muscles?

Answer 2

The pharyngeal branch of the vagus nerve.

Question 3

Answer 3

Question 4

Where is Erb’s point located?

What nerves exit there?

Answer 4

Tucked in behind the SCM.

The transverse cervical, the great auricular, the lesser occipital, and the supraclavicular.

Question 5

Answer 5

Question 6

Answer 6

Question 7

Answer 7

Question 8

What forms the superior root of the ansa cervicalis?

What forms the posterior root of the ansa cervicalis?

Answer 8

Superior root: Anterior ramus of C1, just after it no longer runs with the hypoglossal nerve.

Inferior root: C2 and C3 merge to form the inferior root.

Question 9

What does the superior laryngeal artery branch off of?

Answer 9

Superior thyroid artery.

Question 10

What are all of the branches from the subclavian, and their sub-branches?

Answer 10

• Vertebral A.
• Internal Thoracic A
• Thyrocervical Trunk
  
  • Inferior Thyroid A
  • Superficial Cervical A
  • Suprascapular A
• Costocervical A
  
  • Superior intercostal A
  • Deep cervical A
• Dorsal Scapular A

(Very Indignant Tired Individuals Sip Strong Coffee Served Double Daily)

Question 11

Answer 11

Question 12

Why might it be difficult to see the anterior ramus of C1 in lab?

Answer 12

Because it’s attached to the hypoglossal nerve. :(

Question 13

The thyroid gland is supplied by what two major vessels?

Answer 13

The external carotid (superior thyroid)

The subclavian (inferior thyroid)

Question 14

Answer 14

Question 15

Answer 15

Question 16

What innervates the skin over the anterior triangle?

Answer 16

Transverse cervical nerve (C2 and C3).

Question 17

What nerve innervates most of the laryngeal muscles?

Answer 17

The recurrent laryngeal nerve.

Question 18

What are the branches of the facial artery?

Answer 18

Ascending palatine.

Tonsillar.

Submental.

Question 19

What nerve conveys the signal for the carotid bodies?

Answer 19

Glossopharyngeal Nerve

Question 20

What innervates the skin behind the ear?

Answer 20

The lesser occipital nerve. (Mostly C2)

Question 21

Answer 21

Question 22

What is the carotid body sensitive to?

What is the carotid sinus sensitive to?

Answer 22

Carotid body = chemoreceptors to detect blood composition and oxygen content.

Carotid sinus = baroreceptors to detect blood pressure.

Question 23

What innervates the skin over the clavicle?

Answer 23

The supraclavicular nerves (medial, intermediate, and lateral supraclavicular nerves)

(C3 and C4)

Question 24

What innervates the skin near the ears?

Answer 24

The great auricular nerve from the cervical plexus. (C2 and C3)

Question 25

Answer 25

Question 26

What are the contents of the carotid sheath?

Answer 26

Common carotid A.

Internal jugular V.

Vagus N.