Blood flow

Definition

Blood flow is the continuous movement of blood through the circulatory system, delivering oxygen and nutrients to tissues and organs, and removing waste products. It is driven by the heart's pumping action and regulated by the diameter of blood vessels.

Related terms

Heart:

The muscular organ that pumps blood throughout the body by contracting rhythmically.

Arteries:

Blood vessels that carry oxygen-rich blood away from the heart to all parts of the body.

Veins: Blood vessels that return deoxygenated blood back to the heart from various parts of the body