Question

explain the structure of 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.

Answer 2

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• Human heart is made up of muscle and is called as myogenic.
• It's size is approximately equal to our fist.
• Human heart has 4 chambers, Right & left auricle and right & left ventricle.
• It is located between lungs in a cavity 'mediastium'.
• It's weight is about 300-400g.
• Hard wall of heart called candium. It is present in three layers:-

• Outer - Epicardiun
• Middle - Myocardium
• Inner - Endocardium

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