Question:

Which of the following chambers of heart has the thickest muscular wall?

Updated On: Jun 7, 2022

Left atrium
Left ventricle
Right atrium
Right ventricle

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The Correct Option is B

Solution and Explanation

The ventricles act as the distributing chambers of the blood reaching from the atria. They have thicker walls than the auricles have and the wall of the left ventricle is about three times as thick as that of right ventricle. This is because the left ventricle has to pump the blood to the farthest end of the body, whereas the right ventricle has to send the blood to the lungs, which lie nearby.

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List I	List II
A	P wave	I	Heart muscles are electrically silent.
B	QRS complex	II	Depolarisation of ventricles.
C	T wave	III	Depolarisation of atria.
D	T-P gap	IV	Repolarisation of ventricles.

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Concepts Used:

Body Fluids and Circulation

Liquid substances in the animal or human body are known as body fluids. The human body consists of about 60-67% body fluids. The chief components of the human body fluids are blood and lymph. Blood comprises a matrix called plasma with blood corpuscles floating in it. The blood cells are white blood cells, red blood cells, and platelets. Lymph consists of lymph cells.

Read More: Body Fluids and Circulation

Types of Body Fluids:

The different types of body fluids:

Blood

The main components of blood involve;

Plasma
Red Blood Cells
White Blood Cells
Platelets

Lymph

A colorless fluid present in the interstitial tissues is lymph. It circulates all over the lymphatic system. It can be described as blood without the RBCs. The exchange of hormones, nutrients, and gases occurs via this fluid. It contains lymphocytes that play a major function in the immune responses of the body.

The movement of blood across the vessels of the body that carries nutrients and gases along with it and removes waste from the different parts of the body is circulation.

Types of Circulatory Systems:

There are two types of circulatory systems:

Open Circulatory system
Closed circulatory system