Question

What is the human heart made of?

Answer 1

Human heart:

1. The human heart is one of the most important organs responsible for sustaining life.
2. It is a muscular organ composed of cardiac muscles.
3. The heart is composed of four chambers, two small upper chambers termed atria and two larger lower chambers termed ventricles.
4. The heart wall comprises three layers: epicardium, myocardium, and endocardium.
   1. Epicardium is the heart wall's outer layer.
   2. Myocardium is the heart wall's middle layer.
   3. Endocardium is the heart wall's inner layer.

Main functions of the heart:

1. The human heart's main job is to circulate blood throughout the body.
2. Blood carries nutrients including glucose, hormones, and oxygen to many bodily parts, including the human heart.
3. The heart also makes sure that the body's blood pressure is kept at a healthy level.