Blood vessels Flashcards
What are the main arteries in the neck?
Carotid arteries
Vertebral arteries
Thyrocervical trunk
Where does the right carotid artery arise from?
Bifurfaction of the brachiocephalic trunk
Where does the left carotid artery arise from?
Arch of the aorta
What is the route of the common carotid artery in the neck?
Ascend up the neck - lateral to trachea + oesophagus
What level does the common carotid artery split?
C4
What is the route of the external carotid artery?
Travels up neck
- posteriorly to mandibular neck
- anterior to lobule of ear
Ends in the parotid gland
How many branches of the external carotid artery are there?
8
What are the branches of the external carotid artery?
Superior thyroid Lingual Facial Ascending pharyngeal Occipital Posterior auricular Maxillary Superficial temporal
What arteries contribute to blood supply of the scalp?
Posterior auricular artery Occipital artery Superficial temporal artery Supraorbital artery Supratrochlear artery
What artery supplies the deep structures of the face?
Maxillary artery
What arteries supply the superficial areas of the face?
Facial artery
Superficial temporal artery
What is the route of the internal carotid artery?
Enters cranial cavity via carotid canal in petrous part of temporal bone
What does the internal carotid artery supply?
Brain
Eyes
Forehead
Where do the vertebral arteries arise?
Subclavian arteries
What is the route of the vertebral arteries?
Arise from the subclavian arteries medial to anterior scalenes
Ascend posterior aspect of the neck - through holes in transverse processes of cervical vertebrae
Enter cranium via foramen magnum
Converge to form the basilar artery
What is the thyrocervical trunk?
Joining of the right and left subclavian arteries
What are the branches of the thyrocervical trunk?
Inferior thyroid artery
Ascending cervical artery
Transverse cervical artery
Suprascapular artery
What does the inferior thyroid artery supply?
Thyroid gland
What does the ascending cervical artery supply?
Posterior prevertebral muscles
What does the transverse cervical artery supply?
Trapezius
Rhomboid muscles
What does the suprascapular artery supply?
Posterior shoulder area
What are the main veins of the head and neck?
External jugular vein
Anterior jugular vein
Internal jugular vein
What does the external jugular vein drain?
External vein
What forms the external jugular vein?
Union of
- posterior auricular vein
- retromandibular vein
What does the posterior auricular vein drain?
Scalp - posterior and superior to ear
What does the retromandibular vein drain?
Face
What forms the retromandibular vein?
Maxillary vein
Superficial temporal vein
What is the route of the external jugular vein?
Veins combine posterior to angle of mandible
Descends down neck - in superficial fascia, anterior to SCM
Passes under clavicle - drains in subclavian vein
What tributaries does the external jugular vein receive?
Posterior external jugular vein
Transverse cervical vein
Suprascapular vein
What does the anterior jugular vein drain?
Anterior neck
What is the route of the anterior jugular vein?
Descend down midline of neck
Empty into subclavian vein
How does the internal jugular vein arise?
Continuation of the sigmoid sinus
What is the route of the internal jugular vein?
Exits skull via jugular foramen
Descends neck - in carotid sheath (deep to SCM, lateral to CCA)
Combines with subclavian vein to form brachiocephalic vein
What tributaries does the internal jugular vein receive?
Facial vein Lingual vein Occipital vein Superior thyroid vein Middle thyroid vein
