Parts of Heart

Human Heart

The heart is a muscle.it pumps the blood around the body so that oxygen reaches every part of the body.

Size of the heart

Size of a heart is about the size of a fist.

Woman’s heart

225 grams (8 ounces) is average weight of a woman’s heart.

A Man’s heart

285 grams (10 ounces) is average weight of a man’s heart.

Human’s heart beats

One beat per second,


70 times a minute,


4200 times an hour,


100,000 times a day,


700,000 times a week,


About 3 million times a month,


About 37 million times a year.
Parts of the heart

The heart is divided into four chambers

The left atrium

The right atrium

The left ventricle

The right ventricle

Flow of blood with oxygen

Blood that is rich with oxygen flows from the left atrium into left ventricle and then around the body.

Flow of blood without oxygen

Blood without oxygen flows from right atrium to right ventricle and then to the lungs to receive oxygen.