Neurovascular Structures In the Neck

Question 1

Arterial blood supply to the head and neck is from what?

Answer 1

CCA

Question 2

What artery is the CCA a branch of on the right side?

Answer 2

Brachiocephalic

Question 3

What artery is the CCA a branch of on the left side?

Answer 3

Aortic arch

Question 4

Answer 4

Question 5

Where does the CCA run?

Answer 5

Runs in the anterior triangle of the neck within the carotid sheath.

Question 6

Identify the carotid sheath in the images below. Identify two other structures that occupy this sheath.

Answer 6

IJV

Vagus nerve

Question 7

At what level (in relation to the vertebrae and cartilaginous structures in the neck) does the CCA divide into the external (ECA) and internal carotid arteries (ICA) in the neck?

Answer 7

C4

Question 8

Which of these two branches, (the ECA or the ICA?), gives off branches in the neck?

Answer 8

ECA

Question 9

In the neck, which of these two, the ECA or the ICA is the most lateral?

Answer 9

ICA

Question 10

What are the two terminal branches of the ECA (given off in the face) and within which glandular structure are they given off?

Answer 10

Superficial temporal artery & Maxillary artery – Parotid Gland

Question 11

Where does the IJV run?

Answer 11

In the carotid sheath

It arises from the jugular venous sinus

It emerges from the jugular foramen

Question 12

Which vein of the upper limb does the IJV merge with and what is the name of the vein that is formed?

Answer 12

Joins with the Right Subclavian vein to form the Right Brachiocephalic vein. – drains into the superior vena cava

Question 13

What is the EJV?

Answer 13

Superficial vein draining the scalp and face

Question 14

In relation to the sternocleidomastoid muscle, where does the EJV run – superficial or deep to it?

Answer 14

Superficial to the sternocleidomastoid muscle.

But deep to the Platysma.

Question 15

Which vein does the EJV drain into?

Answer 15

Subclavian vein

Question 16

Where does the vagus nerve lie in relation to the vascular contents of the sheath?

Answer 16

Posterior and in between the IJV and CCA

Question 17

What does the phrenic nerve arise form?

Answer 17

The cervical plexus in the neck and travels through the neck into the thorax to supply the diaphragm.

Question 18

Where does the phrenic nerve lie in relation to the carotid sheath?

Answer 18

Posteriorly to the carotid sheath