Question

Draw a neat diagram internal structure of heart and explanation

Answer 1

Answer:

please mark me as brainliest

Explanation:

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

Answer:

this Is the diagrams of internal heart