MICROANATOMY

BLOOD CARDIOVASCULAR SYSTEM LYMPHOID ORGANS

CARDIOVASCULAR SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
This is responsible for distributing electrical impulses through the heart
A
Atrioventricular node
B
Sinoatrial node
C
Inferior vena cava
D
Superior vena cava
Explanation: 

Detailed explanation-1: -To do this, it relies on a specialized network of cells called the cardiac conduction system . It’s also known as your heart’s electrical system. Cells in the cardiac conduction system can generate electrical impulses and then distribute the signal throughout your heart.

Detailed explanation-2: -The bundle of His is also called the atrioventricular bundle. It is a branch of fibers (nerve cells) that extends from your AV node. This fiber bundle receives the electrical signal from the AV node and carries it to the Purkinje fibers.

Detailed explanation-3: -From the AV node, the impulse spreads into a system of specialized fibers called the His bundle and the right and left bundle branches. These fibers distribute the electrical impulse rapidly to all areas of the right and left ventricles, stimulating them to contract in a coordinated way.

Detailed explanation-4: -The signal travels to the AV node (atrioventricular node). This node is between the atria and the ventricles. In the AV node, the impulses are slowed down for a very short time. This allows the atria to contract a fraction of a second before the ventricles.

There is 1 question to complete.