sinoatrial node
(redirected from Atrial sinus)

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sinoatrial node

A small mass of specialized cardiac muscle fibers located in the posterior wall of the right atrium of the heart that acts as a pacemaker by generating at regular intervals the electric impulses of the heartbeat. Also called sinoauricular node, sinus node.

sinoatrial node (s

A small mass of specialized cardiac muscle fibers that acts as a pacemaker by initiating and maintaining normal heartbeat and cardiac rhythm. It is located in the right atrium.

ThesaurusLegend: Synonyms Related Words Antonyms

Noun

sinoatrial node - a specialized bit of heart tissue that controls the heartbeat

cardiac pacemaker, SA node, pacemaker

cardiac muscle, heart muscle - the muscle tissue of the heart; adapted to continued rhythmic contraction

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arrhythmia atrioventricular node cardiac muscle cardiac pacemaker ectopic heart muscle pacemaker S-A node SA node sinoatrial sinoauricular node sinus node			ATP ATPase atrabilarian Atrabiliar Atrabiliary Atrabiliary arteries Atrabiliary capsule atrabilious atrament Atramentaceous Atramental Atramentarious atrazine Atrede atremble Atrenne atresia Atreus atria atrial atrial artery atrial auricle atrial fibrillation atrial natriuretic factor atrial septal defect Atrial sinus atrichia Atrichornis Atrichornithidae atrioventricular atrioventricular block atrioventricular bundle atrioventricular nodal rhythm atrioventricular node atrioventricular trunk atrioventricular valve atrip Atriplex Atriplex hortensis Atriplex hymenelytra Atriplex lentiformis Atriplex mexicana atrium atrium cordis atrium dextrum atrium of the heart atrium sinistrum Atrocha atrocious atrociously atrociousness			Atrial Peak Filling Velocity Atrial Premature Beat atrial premature complex atrial premature complex atrial premature complex atrial premature complex Atrial premature complexes Atrial Premature Contraction atrial premature depolarization atrial premature depolarization atrial premature depolarization atrial premature depolarization atrial rupture atrial rupture atrial septal defect atrial septal defect atrial septal defect atrial septal defect atrial septal defect Atrial Septal Defect 1 Atrial Septal Defect 2 Atrial Septal Defect Occlusion System Atrial Septal Defect Type II atrial septal defects atrial septal defects atrial septal defects atrial septal defects Atrial septum Atrial septum Atrial septum Atrial sinus atrial standstill atrial standstill atrial synchronous atrial synchronous, ventricular inhibited Atrial systole Atrial systole Atrial systole atrial systolic failure atrial tachycardia atrial tachycardia atrial tachycardia atrial tachycardia atrial venous pulse atrial venous pulse atrial venous pulse atrial venous pulse Atrial-natriuretic peptide Atrial-Ventricular Node Functional Refractory Period ATRIB Atribute-Value Pair Model Atrica Resilient Ethernet Access atrichia atrichia atrichia Atrichia with Papular Lesions atrichial gland tumor atrichial sweat gland atrichial sweat gland atrichial sweat gland Atrichornis

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sinoatrial node (redirected from Atrial sinus)

sinoatrial node
(redirected from Atrial sinus)