Question

Describe the structure of the human heart with the help of a labelled longitudinal section diagram of the human heart.

Hint:

The heart functions through the coordinated contraction of its chambers, regulated by electrical impulses.

Answer 1

The human heart is a four-chambered muscular organ that pumps blood throughout the body. It consists of: 
- Right Atrium and Right Ventricle: Receive deoxygenated blood from the body and pump it to the lungs. 
- Left Atrium and Left Ventricle: Receive oxygenated blood from the lungs and pump it to the rest of the body. 
- Valves (Tricuspid, Bicuspid, Aortic, and Pulmonary Valves): Prevent backflow of blood. 
- Major Blood Vessels: Aorta, Pulmonary Artery, Pulmonary Vein, and Vena Cava assist in circulation. 
Function: The heart ensures continuous circulation of oxygenated and deoxygenated blood, maintaining homeostasis. A labelled diagram of the heart helps visualize its structure.