Tissue Fluid

Question 1

What is the fluid found in blood called

Answer 1

Plamsa

Question 2

The blood pressure is high at the start of the capillary. Explain how the left ventricle causes the blood to be at high pressure.

Answer 2

It contracts

Question 3

The blood pressure decreases along the length of the capillary. What causes this decrease in pressure?

Answer 3

Loss of fluid

Question 4

In children, some diets may result in a low concentration of protein in blood plasma. This can cause the accumulation of tissue fluid. Explain the link between a low concentration of protein in blood plasma and the accumulation of tissue fluid.

Answer 4

Water potential is higher so the water potential gradient is reduced so less water is absorbed back into the capillaries by osmosis

Question 5

In humans, substances move out of the capillaries to form tissue fluid. Describe how this tissue fluid is returned to the circulatory system.

Answer 5

The water potential in the capillaries is lower than around the cells due to the proteins in the blood, so water returns by osmosis. Any remaining tissue fluid returns via the lymphatic system