Question

Describe the Internal structure of Human Heart.
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Answer 1

Answer:

Structure of the Heart. 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.

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Answer 2

Explanation:

Internal structure of heart:::::

♥ Heart is the most important organ in our body which helps to survive

♥ The heart is a strong muscular pump that circulates and pumps about 2,000 gallons of blood each day and contracts and expands about 100,000 times per day.

♥ The human heart is an organ that pumps blood throughout the body via the circulatory system, supplying oxygen and nutrients to the tissues and removing carbon dioxide and other wastes.

♥ The normal heart is only as big as an average clenched fist and sits behind the breast bone, or sternum, slightly to the left in between the lungs.

♥ Large blood vessels leave and enter the heart and help to keep it in position.

♥ The internal structure of the heart consists of four hollow spaces, or chambers, divided by a tissue wall, called the cardiac septum. The flow of blood through the heart is regulated by four valves.

♥ The main function of your heart is to keep blood that's full of oxygen circulating throughout your body. Because your heart is crucial to your survival