How Do Microscopic Structures Support Oxygen Transport?
Several microscopic structures support oxygen transport:
Capillaries: These tiny blood vessels have thin walls that allow for efficient gas exchange between blood and tissues. Alveoli: Located in the lungs, alveoli are specialized for gas exchange, providing a large surface area and thin barrier for oxygen to diffuse into the blood. Endothelial Cells: These cells line the interior of blood vessels and play a role in regulating the passage of oxygen and other substances.