Question

what is the structure of heart? and why the normal design is like this ❤​

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

The heart is divided into four chambers consisting of two atria and two ventricles;

the atria receive blood,

while the ventricles pump blood.

The right atrium receives blood from the superior and inferior vena cavas and the coronary sinus; blood then moves to the right ventricle where it is pumped to the lungs.

HOPE THAT THIS HELPS YOU.