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When external carotid artery ascends the neck, it lies more lateral than internal carotid artery. [2] The external carotid artery is covered by the skin, superficial fascia, platysma muscle, deep fascia, and anterior margin of the sternocleidomastoid; it is crossed by the hypoglossal nerve, by the lingual, ranine, common facial, and superior ...
The common carotid artery is contained in a sheath known as the carotid sheath, which is derived from the deep cervical fascia and encloses also the internal jugular vein and vagus nerve, the vein lying lateral to the artery, and the nerve between the artery and vein, on a plane posterior to both. On opening the sheath, each of these three ...
The internal carotid artery; The arteries of the brain; The arteries of the upper extremity The subclavian artery; The axilla. The axillary artery; The brachial artery; The radial artery; The ulnar artery; The arteries of the trunk The descending aorta. The thoracic aorta; The abdominal aorta; The common iliac arteries The hypogastric artery ...
2.2 left common carotid artery ... 2.2.2 external carotid artery. 2.3 Left subclavian artery (directly from arch of aorta on left) 2.3.1 vertebral artery.
the greater palatine artery, a branch of the maxillary artery, a branch of the external carotid artery. [1] [2] a septal branch of the superior labial artery, a branch of the facial artery, a branch of the external carotid artery. [1] [2] a posterior ethmoidal artery, a branch of the ophthalmic artery, a branch of the internal carotid artery. [1]
The facial artery arises in the carotid triangle from the external carotid artery, [1] [2] a little above the lingual artery, and sheltered by the ramus of the mandible. It passes obliquely up beneath the digastric and stylohyoid muscles, over which it arches to enter a groove on the posterior surface of the submandibular gland. [3]
The carotid body is a small cluster of peripheral chemoreceptor cells and supporting sustentacular cells situated at the bifurcation of each common carotid artery in its tunica externa. [ 1 ] [ 2 ] The carotid body detects changes in the composition of arterial blood flowing through it, mainly the partial pressure of arterial oxygen , but also ...
The deep portion anastomoses with the vertebral artery and with the a. profunda cervicalis, a branch of the costocervical trunk. Thus, branches of the occipital artery participate in anastomosis between the external carotid and the subclavian artery, thereby providing collateral circulation. [2]