Interstitial Fluid

The video explains interstitial fluid, its role in the body, and its importance in nutrient and waste exchange. It covers microcirculation, hydrostatic and osmotic pressures, and the movement of fluid into lymph vessels. The structure of capillaries and the composition of interstitial fluid are detailed, along with the process of gas exchange involving oxygen and carbon dioxide.

What is the primary role of interstitial fluid in the body?

• To produce red blood cells

• To store nutrients for long-term use

• To separate cells from the circulatory system

• To transport oxygen directly to the heart

Which type of pressure pushes fluid out of the capillaries?

• Osmotic pressure

• Barometric pressure

• Atmospheric pressure

• Hydrostatic pressure

What happens to the fluid that leaks out of capillaries?

• It evaporates into the air

• It moves into lymph vessels

• It is absorbed by the skin

• It remains in the capillaries

What is a major component of interstitial fluid?

• Red blood cells

• Bone marrow

• Muscle fibers

• Water

How does oxygen reach the cells from the blood?

• Through direct contact with the heart

• By diffusion through interstitial fluid

• Via nerve impulses

• Through muscle contractions