Science, asked by kiki2222, 5 months ago

heart of structure pic

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Answered by Anonymous

7

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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Answered by MaizmeenAnsari

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above answer is correct.......✌✌✌✌

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