Question

What is the structure of the heart??

Answer 1

Answer:

The human heart is a four-chambered muscular organ, shaped and sized roughly like a man's closed fist with two-thirds of the mass to the left of midline. The heart is enclosed in a pericardial sac that is lined with the parietal layers of a serous membrane.

Explanation:

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Answer 2

Answer:

The heart is an organ that pumps blood to all the parts of our body through the blood vessels. The heart is located between the lungs in the chest cavity with its lower tip slightly tilted towards the left. The size of heart in an adult is roughly equal to the fist (mutthi), i.e., about 12 cm in length and 9 cm in breadth. The English Physician, William Harvey (CE 1578-1657) discovered the circulation of blood.