Question

Waht is heart made of?​

Answer 1

Answer:

The heart is made of three layers of tissue. Endocardium, the thin inner lining of the heart chambers that also forms the surface of the valves. Myocardium, the thick middle layer of muscle that allows your heart chambers to contract and relax to pump blood to your body. Pericardium, the sac that surrounds your heart.

Answer 2

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Your heart is made up of three layers of tissue:-

• Pericardium – a thin outer lining that protects and surrounds your heart.

• Myocardium – a thick muscular middle layer that contracts and squeezes blood out of your heart.

• Endocardium – a thin inner lining..

(Inside the heart there are four chambers – two on the left and two on the right.)