Sa Node Medical Definition

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Anatomy and Function of the Heart's Electrical System

https://www.hopkinsmedicine.org/health/conditions-and-diseases/anatomy-and-function-of-the-hearts-electrical-system

An electrical stimulus is generated by the sinus node (also called the sinoatrial node, or SA node). This is a small mass of specialized tissue located in the right upper chamber (atria) of the heart. The sinus node …

Sinoatrial node | Kenhub

https://www.kenhub.com/en/library/anatomy/sinoatrial-node

The sinoatrial node, better known as the sinuatrial or SA node is the key structure responsible for the generation of a regular heartbeat and is therefore …

Physiology, Sinoatrial Node - StatPearls - NCBI Bookshelf

https://www.ncbi.nlm.nih.gov/books/NBK459238/

The SA (sinus) node represents a cluster of myocytes with pacemaker activity. Under normal circumstances, it generates electrical …

Medical Definition of SA node - MedicineNet

https://www.medicinenet.com/sa_node/definition.htm

SA node: The SA node (SA stands for sinoatrial) is one of the major elements in the cardiac conduction system, the system that controls the heart rate. …

Sinoatrial node - Wikipedia

https://en.wikipedia.org/wiki/Sinoatrial_node

Sick Sinus Syndrome: Symptoms, Causes and …

https://my.clevelandclinic.org/health/diseases/21789-sick-sinus-syndrome

Sick sinus syndrome is the name for heart rhythm problems that happen because your sinoatrial node (or sinus node) isn’t working right. The sinus node acts like a pacemaker …

Sick sinus syndrome - Symptoms and causes - Mayo Clinic

https://www.mayoclinic.org/diseases-conditions/sick-sinus-syndrome/symptoms-causes/syc-20377554

Sick sinus syndrome is a type of heart rhythm disorder. It affects the heart's natural pacemaker (sinus node), which controls the heartbeat. Sick sinus syndrome causes slow heartbeats, pauses (long …

Sinoatrial (S-A) node | definition of sinoatrial (S-A) node …

https://medical-dictionary.thefreedictionary.com/sinoatrial+(S-A)+node

node ( nōd) [TA] 1. A knob or nodosity; a circumscribed swelling. 2. anatomy A circumscribed mass of differentiated tissue, especially a lymph node. Synonym (s): …

Sick Sinus Syndrome - StatPearls - NCBI Bookshelf

https://www.ncbi.nlm.nih.gov/books/NBK470599/

The sinoatrial (SA) node is composed of a collection of atrial myocytes that are specialized into two different functional cells. Pacemaker “ P cells ” with intrinsic pacemaker function and transitional “ T cells ” …

SA node | definition of SA node by Medical dictionary

https://medical-dictionary.thefreedictionary.com/SA+node

Abbreviation: SA node A specialized group of cardiac muscle cells in the wall of the right atrium at the entrance of the superior vena cava. These cells depolarize spontaneously …

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