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Did you know?

The human body produces and destroys 15 million blood cells every second.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

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If all the neurons in the human body were lined up, they would stretch more than 600 miles.

The process of placing a stent in a blood vessel. (A) A catheter is used to place a collapsed stent The process of placing a stent in a blood vessel. (A) A catheter is used to place a collapsed stent
Heart Model Heart Model
Insulin, glucagon, and blood glucose. Insulin, glucagon, and blood glucose.
Heart of Mine by Peter Salett Heart of Mine by Peter Salett
Blood pressure measurements: Auscultation of blood pressure Blood pressure measurements: Auscultation of blood pressure
Normal red blood cells (round) and sickled red blood cells Normal red blood cells (round) and sickled red blood cells
Video: Genetic distance between human groups

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