can somebody help me in understanding the structure of heart, it's too hard to understand and I'm facing a lot of problems
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it's very simple:
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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Aap Kaunsi class ME pahle ye batao
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