We use cookies to improve your experience and understand how Examtube is used. You can accept analytics cookies or continue with essential cookies only.
Privacy policy3 public questions tagged with this topic.
The AV node slows down the electrical signal from the SA node before sending it to the ventricles, allowing the atria to contract first.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Circulatory System - Comparative and Evolutionary Aspects
The sinoatrial (SA) node is located in the right atrial wall near the opening of the superior vena cava. It generates rhythmic electrical impulses and acts as the natural pacemaker of the heart.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Regulation and Disorders of Circulatory System
Purkinje fibres rapidly conduct electrical impulses throughout the ventricular walls, producing a synchronized contraction of both ventricles for efficient pumping of blood.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Human Heart - Structure and Cardiac Cycle
This page is supported by advertisements. An ad blocker is stopping those ads from loading, so we cannot show the rest of the page yet. Pause the blocker for this site, then continue. We will check again automatically.
You can keep using this site after advertisements are allowed to load.
