Conduction System of the Heart

Question 1

Atrioventricular Bundle

Answer 1

In heart, conducts electrical impulse from atrioventricular node into ventricles

Question 2

Atrioventricular Node

Answer 2

This area at junction of right atrium and ventricle receives stimulus from sinoatrial node and sends impulse to ventricles through bundle of His

Question 3

Autonomic Nervous System (ANS)

Answer 3

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

Question 4

Bundle Branches

Answer 4

Part of conduction system of heart; electrical signal travels down interventricular septum

Question 5

Bundle of His

Answer 5

Located in interventricular septum; receives electrical impulse from atrioventricular node and distributes it through ventricular walls, causing them to contract simultaneously

Question 6

Pacemaker

Answer 6

Another name for sinoatrial node of heart

Question 7

Purkinje Fibers

Answer 7

Part of conduction system of heart; found in ventricular mycardium

Question 8

Sinoatrial Node (SA)

Answer 8

Also called ‘pacemaker’ of heart; area of right atria that initiates electrical pulse that causes heart to contract