Internal respiration

Definition

Internal respiration is the exchange of gases (oxygen and carbon dioxide) between the blood in the capillaries and the body's cells. This process is crucial for cellular respiration, where cells use oxygen to produce energy.

Related terms

Cellular Respiration:

A metabolic process where cells use oxygen to break down glucose and produce energy in the form of ATP.

Capillaries:

Small blood vessels where the exchange of oxygen, carbon dioxide, nutrients, and waste products with tissues occurs.

Oxygenation: The process of adding oxygen to the body's systems, often referring specifically to the blood