Major blood vessels of the head and neck

Question 1

Where does the arterial supply to the head and neck arise from

Answer 1

Right and left common carotid arteries and vertebral arteries

Question 2

Where does the righ common carotid artery originate from

Answer 2

Brachiocephalic artery behind the right SCM joint

Question 3

Where does the does the left common carotid arise from

Answer 3

Arch of the aorta

Question 4

What is the carotid sheath

Answer 4

A fascial envelope enclosing the common carotid artery internal jugular vein and vagus nerve

Question 5

What is the position of the neurovascular bundle in the carotid sheath

Answer 5

The sheath is thin over the vein, thick over the artery. The artery lies medically and the vein is lateral and nerve behind

Question 6

Where is th sympathetic chain in relation to the carotid sheath

Answer 6

Outside the sheath, medially ad behind it

Question 7

Where does the common carotid bifurcate

Answer 7

At the level of the upper border of he thyroid cartilage (C4) and divide into internal and external carotid arteries

Question 8

Why is the internal carotid more bulbous

Answer 8

Carotid sinus

Question 9

How can you distinguish between the internal and external carotid

Answer 9

Lack of branches on internal and enters the skull through the carotid canal

Question 10

Branches of the external carotid

Some anatomists like freaking out poor medical students

Answer 10

Superior thyroid
Ascending pharyngeal
Lingual
Facial 
Occipital 
Posterior auricular 
Maxillary
Superficial temporal

Question 11

What are the terminal branches of the external carotid

Answer 11

Maxillary and superficial temporal arteries

Question 12

What supplies the Meningies and skull bones

Answer 12

Middle meningeal artery

Question 13

What supplies the tissues of the scalp

Answer 13

branches from the internal carotid artery(supra-orbital and supratrochlear) and the external carotid (superficial temporal, posterior auricular and occipital)

Question 14

Temporal arterititis

Answer 14

A form of vasculitis involving small and medium size vessels

Question 15

What vein drains the structures in the scalp, face and neck

Answer 15

Facial vein which joins the IJV

Question 16

Superior border of carotid triangle

Answer 16

Posterior belly of digastric muscle

Question 17

Medial/ inferior border of carotid triangle

Answer 17

Superior belly of omohyoid muscle

Question 18

What forms the lateral border of the carotid triangle

Answer 18

Medial border of SCM

Question 19

Why is the carotid triangle important

Answer 19

Common carotid bifurcates here

This is a common site for atherosclerosis which can rupture and cause an embolus

Question 20

What is the scalp made up of

Answer 20

Skin
Connective tissue 
Aponeurosis 
Loose Areolar tissue 
Periosteum

Question 21

Where do vessels lie in the scalp

Answer 21

Subcutaneous connective tissue layers

Question 22

what relates to the ant fontanelle

Answer 22

bregma

Question 23

what relates to the post fontanellle

Answer 23

lamda

Question 24

where is the bregma

Answer 24

point of intersection between coronal suture and saggital suture

Question 25

where is the lamda

Answer 25

point of intersection between sagittal suture and lambdoid suture

Question 26

what is the route of the ICA extra-cranially to intracranially

Answer 26

continues up the neck within the carotid sheath and enters the cranial cavity through a small bony canal within the petrous part of the temporal bone