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On the lateral side of the vessels, the accessory nerve runs for a short distance before it pierces the Sternocleidomastoideus; and on the medial side of the external carotid, just below the hyoid bone, the internal branch of the superior laryngeal nerve may be seen; and, still more inferiorly, the external branch of the same nerve.
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 of ...
The external carotid artery arises from the common carotid artery and supplies structures in the face and neck. The external carotid artery is the major artery of the head and upper neck. It arises from the common carotid artery. It terminates by splitting into the superficial temporal and maxillary artery within the parotid gland.
The common carotid artery arises directly from the aorta on the left and as a branch of the brachiocephalic trunk on the right. In anatomy, the left and right common carotid arteries (carotids) (English: / kəˈrɒtɪd / [1][2]) are arteries that supply the head and neck with oxygenated blood; they divide in the neck to form the external and ...
3947. Anatomical terminology. [edit on Wikidata] The internal carotid artery is an artery in the neck which supplies the anterior and middle cerebral circulation. [1] In human anatomy, the internal and external carotid arise from the common carotid artery, where it bifurcates at cervical vertebrae C3 or C4.
Pericarditis refers to inflammation of the thin sac surrounding the heart. The most common symptom is sharp chest pain, which is felt in the middle or left side of the chest or sometimes in the ...
The carotid sheath is a fibrous connective tissue formation surrounding several important structures of the neck. [ 2 ] It is thicker around the arteries than around the vein, allowing the vein to expand. [ 2 ][ 1 ]: 578. The three major fascial layers in the neck contribute to the carotid sheath: the investing fascia, the pretracheal fascia ...
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.