PATHOLOGY

Detailed explanation-1: -If you’re a kid, your heart is about the same size as your fist, and if you’re an adult, it’s about the same size as two fists. Your heart beats about 100, 000 times in one day and about 35 million times in a year. During an average lifetime, the human heart will beat more than 2.5 billion times.

Detailed explanation-2: -An adult heart is about the size of 2 hands clasped together. A child’s heart is about the size of a fist.

Detailed explanation-3: -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.