carotid artery

carotid artery

      one of several arteries that supply blood to the head and neck. Of the two common carotid arteries, which extend headward on each side of the neck, the left originates in the arch of the aorta over the heart; the right originates in the brachiocephalic trunk, the largest branch from the arch of the aorta. Each common carotid artery divides into an external and an internal carotid artery.

      Each internal carotid artery ascends through the carotid canal in the temporal bone into the cranial cavity. It gives off an ophthalmic branch to the eyeball and other contents of the orbit and then divides into the anterior and middle cerebral arteries. The internal carotid arteries, together with the vertebral arteries, which are the arteries of primary supply for the brain, are distinguished by lying at some depth from the surface in their course to the organ, by having curves or twists in their course, and by having no larger collateral branches.

      The external carotid artery ascends through the upper part of the side of the neck and behind the lower jaw into the parotid gland, where it divides into various branches. The external carotid artery gives off the following branches: (1) superior thyroid to the larynx and thyroid gland, (2) lingual to the tongue and sublingual gland, (3) facial to the face, palate, tonsil, and submaxillary gland, (4) occipital to the sternomastoid muscle and back of the scalp, (5) posterior auricular to the back of the ear and the adjacent part of the scalp, (6) superficial temporal to the scalp in front of the ear and, by its transverse facial branch, to the back part of the face, (7) maxillary, giving muscular branches to the muscles of mastication, meningeal to the dura mater, dental to the teeth, and other branches to the nose, palate, and tympanum, and (8) ascending pharyngeal, which supplies the pharynx, palate, tonsils, and dura mater.

* * *

Universalium. 2010.

Игры ⚽ Нужно решить контрольную?

Look at other dictionaries:

  • Carotid artery — A key artery located in the front of the neck though which blood from the heart goes to the brain. There are 2 carotid arteries the right and left common carotid arteries on each side of the neck. Together, the right and left common carotid… …   Medical dictionary

  • carotid artery — noun either of two major arteries of the neck and head; branches from the aorta • Syn: ↑arteria carotis • Hypernyms: ↑artery, ↑arteria, ↑arterial blood vessel • Hyponyms: ↑common carotid artery, ↑ …   Useful english dictionary

  • carotid artery — either of the two main arteries in the neck whose branches supply the head and neck. The common carotid artery arises on the left side directly from the aortic arch and on the right from the innominate artery. They ascend the neck on either side… …   The new mediacal dictionary

  • carotid artery — UK [kəˌrɒtɪd ˈɑː(r)tərɪ] / US [kəˌrɑtɪd ˈɑrtərɪ] noun [countable] Word forms carotid artery : singular carotid artery plural carotid arteries medical one of the two main arteries on each side of your neck that carry blood from your heart to your… …   English dictionary

  • carotid artery — [[t]kərɒ̱tɪd ɑ͟ː(r)təri[/t]] carotid arteries N COUNT A carotid artery is one of the two arteries in the neck that supply the head with blood. [MEDICAL] …   English dictionary

  • carotid artery — A major artery that carries blood from the heart to the head. There is a carotid artery on each side of the neck, and each one splits into two branches. The interior branch carries blood to the brain and eyes, and the exterior branch carries… …   English dictionary of cancer terms

  • Carotid artery dissection — Classification and external resources ICD 9 443.21 …   Wikipedia

  • carotid artery stenosis — carotid stenosis narrowing of the carotid artery, which reduces the supply of blood to the brain and is a cause of strokes. Many cases can be treated by surgical excision or bypass of the narrowed segment (see also endarterectomy), but inserting… …   The new mediacal dictionary

  • carotid-artery stenosis — (carotid stenosis) narrowing of the carotid artery, which reduces the supply of blood to the brain and is a cause of strokes. Sometimes the condition is due to a tumour of the carotid body. Many cases can be treated by surgical excision or bypass …   Medical dictionary

  • Carotid artery stenosis — Infobox Disease Name = Carotid artery stenosis Caption = DiseasesDB = 31178 ICD10 = ICD10|I|65|2|i|60 ICD9 = ICD9|433.1 ICDO = OMIM = MedlinePlus = eMedicineSubj = eMedicineTopic = MeshID = D016893 Carotid stenosis is a narrowing of the lumen of… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”