VEINS OF THE HEAD & NECK

Question 1

Where does the right subclavian artery arise from?

Answer 1

From the brachiocephalic artery

Question 2

Where does the left subclavian artery arise from?

Answer 2

Directly from the aortic arch

Question 3

What are the three main branches of the subclavian artery?

Answer 3

Internal thoracic artery, vertebral artery, thyrocervical artery

Question 4

What does the internal thoracic artery supply?

Answer 4

Thymus, pericardium, and anterior chest wall

Question 5

What does the vertebral artery supply?

Answer 5

Brain and spinal cord

Question 6

Where do the vertebral arteries enter the skull?

Answer 6

Through the foramen magnum

Question 7

What does the thyrocervical artery supply?

Answer 7

Thyroid, cervical region, upper back, and shoulder

Question 8

Where does the right common carotid artery arise from?

Answer 8

From the brachiocephalic artery

Question 9

Where does the left common carotid artery arise from?

Answer 9

Directly from the aortic arch

Question 10

What are the branches of the external carotid artery?

Answer 10

Lingual, facial, occipital, maxillary, and superficial temporal arteries

Question 11

What are the primary arteries supplying the brain?

Answer 11

Internal carotid arteries and vertebral arteries

Question 12

What is the carotid sinus?

Answer 12

An enlargement at the base of the internal carotid artery containing baroreceptors and chemoreceptors

Question 13

What artery supplies the frontal lobe?

Answer 13

Anterior cerebral artery

Question 14

What artery supplies the temporal and parietal lobes?

Answer 14

Middle cerebral artery

Question 15

What artery supplies the eyes?

Answer 15

Ophthalmic artery

Question 16

What forms the anterior portion of the arterial circle?

Answer 16

Anterior cerebral arteries and anterior communicating artery

Question 17

What artery forms the posterior portion of the arterial circle?

Answer 17

Posterior cerebral arteries and posterior communicating arteries

Question 18

What artery is formed by the fusion of the vertebral arteries?

Answer 18

Basilar artery

Question 19

What is a dural sinus?

Answer 19

A venous channel located between layers of dura mater that drains blood from the brain

Question 20

What sinus drains most of the superior surface of the cerebrum?

Answer 20

Superior sagittal sinus

Question 21

What sinus receives blood from the great cerebral vein?

Answer 21

Straight sinus

Question 22

What sinus drains blood from the eye socket and cerebral veins?

Answer 22

Cavernous sinus

Question 23

Where does the sigmoid sinus drain into?

Answer 23

The internal jugular vein

Question 24

What vein collects blood from the dural sinuses and deep face?

Answer 24

Internal jugular vein

Question 25

What vein drains the more superficial portions of the head and face?

Answer 25

External jugular vein

Question 26

What are the tributaries of the internal jugular vein?

Answer 26

Inferior petrosal sinus, facial, lingual, superior and middle thyroid veins

Question 27

What are the tributaries of the external jugular vein?

Answer 27

Retromandibular, posterior auricular, posterior external jugular, transverse cervical, suprascapular Tributaries are smaller veins that drain into a larger vein—just like small streams flowing into a larger river. So, when we talk about the tributaries of the external jugular vein, we mean the veins that flow into it.

Question 28

What sinus allows reabsorption of cerebrospinal fluid?

Answer 28

Superior sagittal sinus via arachnoid granulations

Question 29

Where do the vertebral veins drain?

Answer 29

Into the brachiocephalic veins

Question 30

the brachiocephalic artery (also called the brachiocephalic trunk) comes from…

Answer 30

the aortic arch. Here’s the sequence: • The aortic arch gives off three major branches: 1. Brachiocephalic trunk (only on the right side) 2. Left common carotid artery 3. Left subclavian artery The brachiocephalic trunk then branches into the right subclavian artery and the right common carotid artery, supplying the right arm and the right side of the head and neck. Mnemonic: “Boys Like Sex” → Brachiocephalic, Left common carotid, Subclavian (left)