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Blood vessels

Blood

Heart

Veins

Vessels

Arteries

Capillaries

Endothelium

Vasoconstriction

Vasodilation

Aorta

Blood is a liquid tissue that runs through the body, through blood vessels, transporting cells and all the elements necessary to carry out its vital functions.

The heart is a hollow muscular organ that pumps oxygenated blood throughout the body and deoxygenated blood to the lungs.

It is a blood vessel that carries blood from the capillaries to the heart.

They are tubes through which blood circulates through the body which form a network of arteries, arterioles, capillaries, venules and veins.

An artery is each of the vessels that carry oxygen-rich blood from the heart to the capillaries in the body.

It is the smallest type of blood vessel which connects an arteriole (small artery) with a venule (small vein) to form a network of blood vessels in almost every part of the body.

The endothelium can be defined as a monolayer that separates the tissues from the blood.

It is the narrowing (constriction) of blood vessels by small muscles in their walls.

It is the widening of the blood vessels, usually near the surface of the skin, which increases blood flow with redness or warmth.

It is the largest artery in the body which carries oxygenated blood from the heart to the blood vessels to reach the rest of the body.