Explain the functioning of human heart and also draw the diagram.
Answers
Answer:
Introduction to the Human Heart
The human heart is one of the most important organs responsible for sustaining life. It is a muscular organ with four chambers. The size of the heart is the size of about a clenched fist.
The human heart functions throughout a person’s lifespan and is one of the most robust and hardest working muscles in the human body.
Besides humans, most of the other animals also possess a heart that pumps blood throughout their body. Even invertebrates such as grasshoppers possess a heart like pumping organ, though they do not function the same way a human heart does.
Also Refer: Human Circulatory System
Position of Heart in Human Body
The human heart is located between the lungs in the thoracic cavity, slightly towards the left of the sternum (breastbone). It is derived from the embryonic mesodermal germ layer.
The Function of Heart
The function of the heart in any organism is to maintain a constant flow of blood throughout the body. This replenishes oxygen and circulates nutrients among the cells and tissues.
Following are the main functions of the heart:
One of the primary functions of the human heart is to pump blood throughout the body.
Blood delivers oxygen, hormones, glucose and other components to various parts of the body, including the human heart.
The heart also ensures that adequate blood pressure is maintained in the body
There are two types of circulation within the body, namely pulmonary circulation and systemic circulation.
Explanation:
refer to the attachment
