ANATOMY

Detailed explanation-1: -This happens in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.

Detailed explanation-2: -Gas exchange takes place between blood and alveoli in the lungs, and then between blood and tissue cells all around the body through simple diffusion. Gasses cross the membranes at the alveolar-capillary membrane in the lungs, where oxygen enters and carbon dioxide exits the bloodstream.

Detailed explanation-3: -Basic Principles of Gas Exchange Gas exchange during respiration occurs primarily through diffusion. Diffusion is a process in which transport is driven by a concentration gradient. Gas molecules move from a region of high concentration to a region of low concentration.

Detailed explanation-4: -Final answer: The process of gaseous exchange in lungs between air and blood is called external respiration.

Detailed explanation-5: -In the lungs, the gaseous exchange occurs through alveoli in the lungs and blood capillaries. The oxygen inhaled through the air in the lungs moves from the alveoli to the blood in the capillaries through the process of diffusion as the oxygen concentration is high in the alveoli and low in the blood capillaries.