Blood Supply Of Head And Neck Flashcards
Arises from the brachiocephalic artery, behind the right sternoclavicular joint.
The right common carotid artery
Arises from the arch of aorta in the superior mediastinum.
The left common carotid artery.
At which level does the common carotid artery divides into internal and external carotid arteries?
At the upper border of the thyroid cartilage
The terminal part of the common carotid artery or the beginning of the internal carotid artery called.
The carotid sinus
What is the nerve supply of the carotid sinus?
The glossopharyngeal (CN 9)
Describe the relations of the c.carotid artery?
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.
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.
The external carotid artery
What are the two muscles that the external carotid artery crossed by?
The posterior belly of digastric + the stylohyoid muscles
Branch of the common carotid artery, crossed by the hypoglossal nerve (CN 12).
The external carotid artery
The stylopharyngeus muscle and the glossopharyngeal (CN 9) nerve, lies medially to this artery.
The external carotid artery
Which branch of the vagus nerve pass between the ext and the int carotid artery?
The pharyngeal branch of the vagus
What are the branches of the external carotid artery?
- superior thyroid artery.
- ascending pharyngeal artery.
- lingual artery.
- facial artery.
- maxillary artery.
- superficial temporal artery.
- posterior auricular artery.
- occipital artery.
A branch of the external carotid artery, accompanied by the external laryngeal nerve which supply the cricothyroid muscle.
The superior thyroid artery
A branch of the external carotid artery, which terminate at the medial angle of the eye.
The facial artery
A branch of the external carotid artery, accompanied by the auriculotemporal nerve. It can be palpated just in front of the auricle.
The superficial temporal artery
A branch of the external carotid artery, runs medial to the neck of the mandible and enters the pterygopalatine fossa.
The maxillary artery
Leaves the neck going to the cranial cavity through the carotid canal in the petrous part of the temporal bone.
The internal carotid artery
Terminates by dividing into anterior and middle cerebral arteries.
The internal carotid artery
Describe the anterolateral relations of the internal carotid artery?
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.
The only artery which supply the retina.
The central artery of the retina
An artery, winds around the corpus callosum of the brain to supply the medial and the superolateral surfaces of the cerebral hemispheres.
The anterior cerebral artery
What is the largest terminal branch of the internal carotid artery?
The middle cerebral artery
Branch of the internal carotid artery, runs laterally in the lateral cerebral salcus of the brain.
The middle cerebral artery
The middle cerebral artery supplies all the motor area of the cortex except…
The leg area
Where does the circle of willis lie?
In the subarachnoid space at the base of the brain
What does the 1st part pf the subclavian artery give off?
- vertebral artery.
- thyrocervical trunk.
- internal thoracic artery.
What are the branches of the thyrocervical trunk?
- inferior thyroid artery.
- superficial cervical artery.
- suprascapular artery.
The vertebral artery ascends through the foramina in the transverses of…
Upper six cervical vertebrae
The vertebral arteries join to form the basilar artery at the level of…
At the level of the lower border of the pons
Gives off branches to the pons, the cerebellum and the internal ear.
The basilar artery
Divides into two posterior cerebral arteries.
The basilar artery
Supply the inferolateral surfaces of the temporal lobe and the visual cortex on the lateral and medial surfaces of the occipital lobe.
The posterior cerebral artery
Supply the inferior parathyroid and the thyroid glands, and it is closely related to the recurrent laryngeal nerve.
The inferior thyroid artery
Descends into the thorax behind the first costal cartilage and in front of the pleura.
The internal thoracic artery (branch of the thyrocervical trunk)
At which level does the internal thoracic artery divide into the superior epigastric and the musculophrenic arteries?
In the sixth intercostal space
What are the branches of the 2nd part of the subclavian artery?
The costocervical trunk (gives off, the superior intercostal artery and the deep cervical artery)
On the lateral border of the first rib it becomes the axillary artery.
The 3rd of the subclavian artery
