Peripheral vascular system

Peripheral Vascular System

The Peripheral Vascular System refers to the circulatory system outside of the heart and brain. It is composed of the blood vessels that carry blood to and from the heart, including arteries, veins, and capillaries. The peripheral vascular system is crucial for delivering oxygen and nutrients to the body's tissues and organs, and for removing waste products.

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Illustration of the Peripheral Vascular System

Structure

The peripheral vascular system is divided into two main components: the systemic circulation and the pulmonary circulation. The systemic circulation carries oxygenated blood from the heart to the body's tissues and organs, while the pulmonary circulation carries deoxygenated blood from the body back to the heart.

Arteries

Arteries are the blood vessels that carry oxygenated blood away from the heart to the body's tissues. They have thick, muscular walls that can withstand the high pressure of blood being pumped from the heart.

Veins

Veins are the blood vessels that carry deoxygenated blood back to the heart. They have thinner walls than arteries and contain valves to prevent the backflow of blood.

Capillaries

Capillaries are the smallest blood vessels in the body. They connect arteries and veins and allow for the exchange of oxygen, nutrients, and waste products between the blood and the body's tissues.

Function

The primary function of the peripheral vascular system is to deliver oxygen and nutrients to the body's tissues and organs, and to remove waste products. It also plays a role in regulating body temperature and distributing hormones and other substances throughout the body.

Diseases and Disorders

There are several diseases and disorders that can affect the peripheral vascular system, including Peripheral artery disease, Deep vein thrombosis, and Varicose veins. These conditions can lead to symptoms such as pain, swelling, and changes in skin color, and can increase the risk of more serious complications such as heart attack and stroke.

See Also

• Circulatory system
• Cardiovascular system
• Blood vessels