★ Common carotid a. Origin(arises from a Brachiocephalic trunk on the right o Aortic arch on the left Ascends in neck to upper border of thyroid cartilage; bifurcates into internal and external carotid arteries
★ Common carotid a. ◼ Origin (arises from) ❑ Brachiocephalic trunk on the right ❑ Aortic arch on the left ◼ Ascends in neck to upper border of thyroid cartilage; bifurcates into internal and external carotid arteries
★ Common carotid a. ★ Carotid sinus (baroreceptor), located at a localizes dilation of terminal part of common carotid artery or beginning of internal carotid artery, sensitive to blood pressure changes ★ Carotid glomus (chemoreceptor), lies posterior to the point of bifurcation of common carotid artery, senses changes in blood carbon dioxide(oxygen) levels
★ Common carotid a. ★ Carotid sinus (baroreceptor), located at a localizes dilation of terminal part of common carotid artery or beginning of internal carotid artery, sensitive to blood pressure changes ★ Carotid glomus (chemoreceptor), lies posterior to the point of bifurcation of common carotid artery, senses changes in blood carbon dioxide (oxygen) levels
★ Common carotid a. External carotid artery Superior thyroid a descends to supply upper pole of thyroid gland and larynx Lingual a Facial a Occipital a Posterior auricular a Maxillary a Superficial temporal a
★ Common carotid a. ★ External carotid artery ◼ Superior thyroid a. descends to supply upper pole of thyroid gland and larynx ◼ Lingual a. ◼ Facial a. ◼ Occipital a. ◼ Posterior auricular a. ◼ Maxillary a. ◼ Superficial temporal a
★ Subclavian artery Origin (arises from o Brachiocephalic trunk on right o Aortic arch on left End: becomes axillary artery at lateral border of first rib Branches a∨ ertebra|a 口 Internal thoracic a o Thyrocervical trunk Inferior thyroid artery Suprascapular a o Costocervical trunk
★ Subclavian artery ◼ Origin (arises from) ❑ Brachiocephalic trunk on right ❑ Aortic arch on left ◼ End: becomes axillary artery at lateral border of first rib ◼ Branches ❑ Vertebral a. ❑ Internal thoracic a. ❑ Thyrocervical trunk ◼ Inferior thyroid artery ◼ Superascapular a. ❑ Costocervical trunk
Vertebral a Inferior thyroid a Transvers cervical a Thyrocervical trunk Costocervical Suprascapular a trunk Internal thoratic a
Vertebral a. Thyrocervical trunk Inferior thyroid a. Internal thoratic a. Transvers cervical a. Costocervical trunk Suprascapular a