PATHOLOGY

Detailed explanation-1: -Internal respiration is the process of diffusing oxygen from the blood, into the interstitial fluid and into the cells. Waste and carbon dioxide are also diffused the other direction, from the cells to the blood.

Detailed explanation-2: -The exchange of dissolved gases between the blood and the interstitial fluids in peripheral tissues is called internal respiration. Internal respiration is the exchange of gases between the blood in systemic capillaries and the tissue cells. Typically blood loses oxygen and gains carbon dioxide.

Detailed explanation-3: -Gas exchange is the process by which oxygen and carbon dioxide move between the bloodstream and the lungs.

Detailed explanation-4: -During gas exchange oxygen moves from the lungs to the bloodstream. At the same time carbon dioxide passes from the blood to the lungs. 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.