carotid sinus
noun Date: circa 1923 a small but richly innervated arterial enlargement that is located near the point in the neck where either carotid artery divides to form its main branches and that functions in the regulation of heart rate and blood pressure

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • carotid sinus — n a small but richly innervated arterial enlargement that is located near the point in the neck where the common carotid artery divides into the internal and the external carotid arteries and that functions in the regulation of heart rate and… …   Medical dictionary

  • Carotid sinus — Infobox Anatomy Name = PAGENAME Latin = sinus caroticus GraySubject = GrayPage = Caption = Arteries of the neck. The carotid sinus is at the origin of the internal carotid artery. Caption2 = Precursor = System = Artery = Vein = Nerve = branch of… …   Wikipedia

  • carotid sinus — noun : the slight enlargement of the common carotid artery at the point where it divides into external and internal carotid arteries, being richly supplied with sensory nerve endings and playing a major part in the mechanism regulating heart rate …   Useful english dictionary

  • carotid sinus — Anat. specialized nerve end organs producing a slight dilatation of the carotid artery where it branches into the external and internal carotid arteries, responding to changes in blood pressure by mediating changes in the heartbeat rate. [1940… …   Universalium

  • carotid sinus — a pocket in the wall of the carotid artery, at its division in the neck, containing receptors that monitor blood pressure (see baroreceptor). When blood pressure is raised, impulses travel from the receptors to the vasomotor centre in the brain,… …   The new mediacal dictionary

  • carotid sinus reflex — pressure on, or in, the carotid artery at the level of its bifurcation, causing reflex slowing of the heart rate; this reflex originates in the wall of the sinus of the internal carotid artery. See carotid sinus syndrome, under syndrome …   Medical dictionary

  • carotid sinus syndrome — syncope sometimes associated with convulsive seizures due to overactivity of the carotid sinus reflex (q.v.) when pressure is applied to one or both carotid sinuses. Called also carotid sinus syncope and Charcot Weiss Baker s …   Medical dictionary

  • carotid sinus massage — firm rotatory pressure applied to one side of the neck over the carotid sinus of the supine patient; it causes vagal stimulation, increasing vagal inhibition of sinus and atrioventricular nodes, and it can slow or terminate tachycardia …   Medical dictionary

  • carotid sinus syncope — see under syndrome …   Medical dictionary

  • Branch of glossopharyngeal nerve to carotid sinus — Nerve: Branch of glossopharyngeal nerve to carotid sinus Hypoglossal nerve, cervical plexus, and their branches. (Nerve not labeled, but region is visible.) Latin ramus sinus carotici nervi glossopharyngei Gray s …   Wikipedia

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