Shier, David. Hole"s human being Anatomy & Physiology. McGraw- Hill, 2002.

You are watching: How heavy is a human heart

"Size=closed fist; 300g (adult)."300g
The human being Heart. Texas love Institute, June 2004."The love weighs between 7 and 15 ounces (200 come 425 grams) and also is a tiny larger 보다 the size of your fist."200–425g
Paulsen S, Vetner M, Hagerup LM. Relationship in between heart weight and the cross sectional area the the coronary ostia. National facility for Biotechnological Information, September 1975."Sex sport in the area that the coronary ostia to be studied in hearts through a regular weight (heart weight less than 400 g) and hypertrophic mind (heart weight greater than or equal to 400 g).">400g
The Heart. The Franklin Institute scientific research Museum, 1996."The median adult love is around the size of a clenched fist and weighs about 11 ounces (310 grams)."310g

The love is a reasonably small (no bigger 보다 a clenched fist), hollow, muscular body organ which is in fee of pump blood throughout the body and to other organs. That is comprised of four chambers, and has a conical shape. The upper chambers are called the left and right atria, and also the reduced chambers are called the left and also right ventricles. The left and right atria and left and also right ventricles room separated by a wall surface of muscle known as the septum. The strongest and also biggest chamber in the heart is the left ventricle. Its walls are only half-inch thick, and also yet they are capable of advertise blood through a valve into your body. It is able to pump blood v blood vessels through small, recurring contractions.

The massive of a human heart is in between 200–450g, however about 300g. However, this number have the right to be very varied once the heart is diseased. A diseased heart deserve to sometimes weigh as much as 1000g; an ext than 2 pounds! The human heart is located in between the lungs and also in around the middle of the chest, contempt left of the breast bone. Approximately two thirds the its massive lies come the left that the body"s midlines. In an typical adult weighing around 80kg, (approximately 175pounds), the human heart is approximately 0.3% of the full mass. Back the heart is only a miniscule section of a person"s complete weight, the plays the many important duty in the whole body.

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Stephanie Gambino -- 2006


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