Arterial blood

Arterial Blood

Arterial blood is the oxygen-rich blood that is pumped from the heart to the rest of the body. It is distinct from venous blood, which is oxygen-depleted blood returning to the heart. Arterial blood is bright red in color due to the high concentration of oxygen, while venous blood is darker.

Composition

Arterial blood is composed of several key components. These include red blood cells, which carry oxygen; white blood cells, which fight infection; platelets, which aid in clotting; and plasma, a liquid that carries nutrients, hormones, and waste products.

Function

The primary function of arterial blood is to deliver oxygen and nutrients to the body's cells. It also carries away waste products, such as carbon dioxide, which are then exhaled by the lungs.

Arterial Blood Gas Test

An arterial blood gas (ABG) test is a common medical procedure used to assess the levels of oxygen and carbon dioxide in arterial blood. This test can help diagnose and monitor conditions such as lung disease, kidney disease, and heart failure.

See Also

• Blood
• Heart
• Arteries
• Blood circulation
• Blood vessels

References

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