Blood Supply Of Head And Neck

Question 1

Arises from the brachiocephalic artery, behind the right sternoclavicular joint.

Answer 1

The right common carotid artery

Question 2

Arises from the arch of aorta in the superior mediastinum.

Answer 2

The left common carotid artery.

Question 3

At which level does the common carotid artery divides into internal and external carotid arteries?

Answer 3

At the upper border of the thyroid cartilage

Question 4

The terminal part of the common carotid artery or the beginning of the internal carotid artery called.

Answer 4

The carotid sinus

Question 5

What is the nerve supply of the carotid sinus?

Answer 5

The glossopharyngeal (CN 9)

Question 6

Describe the relations of the c.carotid artery?

Answer 6

Anterolaterally: skin, fascia, SCM muscle, sternothyroid, sternohyoid, and the superior belly of omohyoid muscle.
Posteriorly: transverse processes of the lower 4 cervical vertebrae, prevertebral muscles, and the sympathetic trunk.
Medially: larynx, pharynx, trachea, esophagus and lobe of the thyroid gland.
Laterally: internal jugular vein, and posterolaterally the vagus nerve.

Question 7

Begins from the upper border of the thyroid cartilage, and terminates in the substance of the parotid gland behind the neck of the mandible by dividing into the superficial temporal and maxillary artery.

Answer 7

The external carotid artery

Question 8

What are the two muscles that the external carotid artery crossed by?

Answer 8

The posterior belly of digastric + the stylohyoid muscles

Question 9

Branch of the common carotid artery, crossed by the hypoglossal nerve (CN 12).

Answer 9

The external carotid artery

Question 10

The stylopharyngeus muscle and the glossopharyngeal (CN 9) nerve, lies medially to this artery.

Answer 10

The external carotid artery

Question 11

Which branch of the vagus nerve pass between the ext and the int carotid artery?

Answer 11

The pharyngeal branch of the vagus

Question 12

What are the branches of the external carotid artery?

Answer 12

• superior thyroid artery.
• ascending pharyngeal artery.
• lingual artery.
• facial artery.
• maxillary artery.
• superficial temporal artery.
• posterior auricular artery.
• occipital artery.

Question 13

A branch of the external carotid artery, accompanied by the external laryngeal nerve which supply the cricothyroid muscle.

Answer 13

The superior thyroid artery

Question 14

A branch of the external carotid artery, which terminate at the medial angle of the eye.

Answer 14

The facial artery

Question 15

A branch of the external carotid artery, accompanied by the auriculotemporal nerve. It can be palpated just in front of the auricle.

Answer 15

The superficial temporal artery

Question 16

A branch of the external carotid artery, runs medial to the neck of the mandible and enters the pterygopalatine fossa.

Answer 16

The maxillary artery

Question 17

Leaves the neck going to the cranial cavity through the carotid canal in the petrous part of the temporal bone.

Answer 17

The internal carotid artery

Question 18

Terminates by dividing into anterior and middle cerebral arteries.

Answer 18

The internal carotid artery

Question 19

Describe the anterolateral relations of the internal carotid artery?

Answer 19

Anterolaterally:

• below the digastric: skin, fasica, anterior border of SCM muscle and the hypoglossal nerve.
• above the digastric: stylohyoid, stylopharyngeus muscles, the glossopharyngeal nerve, the pharyngeal branch of the vagus, the parotid gland and the ext carotid artery.

Question 20

The only artery which supply the retina.

Answer 20

The central artery of the retina

Question 21

An artery, winds around the corpus callosum of the brain to supply the medial and the superolateral surfaces of the cerebral hemispheres.

Answer 21

The anterior cerebral artery

Question 22

What is the largest terminal branch of the internal carotid artery?

Answer 22

The middle cerebral artery

Question 23

Branch of the internal carotid artery, runs laterally in the lateral cerebral salcus of the brain.

Answer 23

The middle cerebral artery

Question 24

The middle cerebral artery supplies all the motor area of the cortex except…

Answer 24

The leg area

Question 25

Where does the circle of willis lie?

Answer 25

In the subarachnoid space at the base of the brain

Question 26

What does the 1st part pf the subclavian artery give off?

Answer 26

- vertebral artery. - thyrocervical trunk. - internal thoracic artery.

Question 27

What are the branches of the thyrocervical trunk?

Answer 27

- inferior thyroid artery. - superficial cervical artery. - suprascapular artery.

Question 28

The vertebral artery ascends through the foramina in the transverses of...

Answer 28

Upper six cervical vertebrae

Question 29

The vertebral arteries join to form the basilar artery at the level of...

Answer 29

At the level of the lower border of the pons

Question 30

Gives off branches to the pons, the cerebellum and the internal ear.

Answer 30

The basilar artery

Question 31

Divides into two posterior cerebral arteries.

Answer 31

The basilar artery

Question 32

Supply the inferolateral surfaces of the temporal lobe and the visual cortex on the lateral and medial surfaces of the occipital lobe.

Answer 32

The posterior cerebral artery

Question 33

Supply the inferior parathyroid and the thyroid glands, and it is closely related to the recurrent laryngeal nerve.

Answer 33

The inferior thyroid artery

Question 34

Descends into the thorax behind the first costal cartilage and in front of the pleura.

Answer 34

The internal thoracic artery (branch of the thyrocervical trunk)

Question 35

At which level does the internal thoracic artery divide into the superior epigastric and the musculophrenic arteries?

Answer 35

In the sixth intercostal space

Question 36

What are the branches of the 2nd part of the subclavian artery?

Answer 36

The costocervical trunk (gives off, the superior intercostal artery and the deep cervical artery)

Question 37

On the lateral border of the first rib it becomes the axillary artery.

Answer 37

The 3rd of the subclavian artery