Sinoatrial Node Medical Definition

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 often referred to as the pacemaker of the heart. It is the first component of the cardiac …

Physiology, Sinoatrial Node - StatPearls

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

The SA (sinus) node represents a cluster of myocytes with pacemaker activity. Under normal …

Sinoatrial node | definition of sinoatrial node by Medical …

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

sinoatrial node. n. 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 …

Sinoatrial node - Wikipedia

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

Sinoatrial node Definition & Meaning - Merriam-Webster

https://www.merriam-webster.com/dictionary/sinoatrial%20node

Medical Definition sinoatrial node noun : a small mass of tissue that is made up of Purkinje fibers, ganglion cells, and nerve fibers, that is embedded in the …

Sinoatrial Definition & Meaning - Merriam-Webster

https://www.merriam-webster.com/dictionary/sinoatrial

Sinoatrial Definition & Meaning - Merriam-Webster sinoatrial adjective si· no· atri· al ˌsī-nō-ˈā-trē-əl : of, involving, or being the sinus node sinoatrial block …

Sick sinus syndrome - Symptoms and …

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

The heart is made up of four chambers — two upper (atria) and two lower (ventricles). The rhythm of the heart is typically controlled by the sinus node, an area of …

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. This …

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

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

sinoatrial node a collection of atypical muscle fibers in the wall of the right atrium where the rhythm of cardiac contraction is usually established; therefore also referred to as the …

Medical Definition of Sinoatrial node - MedicineNet

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

Sinoatrial node: The heart's natural pacemaker, one of the major elements in the cardiac conduction system, the system that controls the heart rate. …