Conduction System of the Heart Flashcards
Atrioventricular Bundle
In heart, conducts electrical impulse from atrioventricular node into ventricles
Atrioventricular Node
This area at junction of right atrium and ventricle receives stimulus from sinoatrial node and sends impulse to ventricles through bundle of His
Autonomic Nervous System (ANS)
Portion of nervous system consisting of nerves to internal organs that function involuntarily; regulates functions of glands (especially salivary, gastric, and sweat glands), adrenal medulla, heart, and smooth muscle tissue; system is divided into two parts; sympathetic and parasympathetic
Bundle Branches
Part of conduction system of heart; electrical signal travels down interventricular septum
Bundle of His
Located in interventricular septum; receives electrical impulse from atrioventricular node and distributes it through ventricular walls, causing them to contract simultaneously
Pacemaker
Another name for sinoatrial node of heart
Purkinje Fibers
Part of conduction system of heart; found in ventricular mycardium
Sinoatrial Node (SA)
Also called ‘pacemaker’ of heart; area of right atria that initiates electrical pulse that causes heart to contract