Organ library

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v1.0.11

Aorta: Main artery
Left Atrium: Receives oxygenated blood
Right Atrium: Receives venous blood
Left Ventricle: Pumps to the body
Right Ventricle: Pumps to the lungs
Mitral Valve: Prevents backflow

3D specimen · click a dot to exploreCor

The Heart

Heart

The tireless pump

A muscular organ that pumps blood throughout the body, delivering oxygen and nutrients to every cell.

Key facts

◇ Size: About the size of your fist
♙ Weight: 250–350 g
⌁ Daily: Beats about 100,000 times
⌖ Location: Behind the sternum, slightly left
❋ Blood supply: Left and right coronary arteries
◈ Function: Circulates oxygenated blood

Medical importanceIts electrical rhythm coordinates every heartbeat.

Did you knowIt beats roughly 2.5 billion times in an average lifetime, and starts before you are born.

Value and cost

Transplant episode: $1,664,800Source: Milliman Research Report, U.S. Organ and Tissue Transplant Cost Estimates, 2020

Illegal trade estimate$90,000 to $290,000

Buying and selling organs is a crime almost everywhere. This figure comes from trafficking research, not from any market that keeps books, and estimates vary widely between sources. It is here to show the scale of the trade, not to price anything. Donors are typically paid a small fraction of what a recipient hands over.

Source: Global Financial Integrity, Transnational Crime and the Developing World, 2017

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Learning is
an act of curiosity.

Keep exploring!

Microscopic view

Cardiac muscle tissue

Compare organs

Heart vs. brain

Function animation

Circulates oxygenated blood

Clinical notes

Common conditions

MyocarditisDiffuseI40.9
Congenital heart defectsDiffuseQ24.9

Where it works