ch 20 pt 5

Question 1

What is diffusion?

Answer 1

Substances leave or enter blood according to their concentration gradient (H-L)

Question 1

What is vesicular transport?

Answer 1

Endothelial cells use pinocytosis and exocytosis

Question 2

What is bulk flow?

Answer 2

Fluids flow down pressure gradient

Question 3

What is filtration?

Answer 3

Fluid moves out of blood

Question 4

What is reabsorption?

Answer 4

Fluid moves back into blood

Question 5

What is hydrostatic pressure?

Answer 5

Force exerted by a fluid

Question 6

What is blood hydrostatic pressure (HPb)?

Answer 6

Force exerted per unit area by blood on vessel wall

Question 7

What is interstitial fluid hydrostatic pressure (HBif)?

Answer 7

Force of interstitial fluid on outside of blood vessel (0)

Question 8

What is colloid osmotic pressure?

Answer 8

The pull-on water due to the presence of proteins

Question 9

What is blood colloid osmotic pressure (COPb)?

Answer 9

Draws fluid into blood due to blood proteins

Question 10

What is interstitial fluid colloid osmotic pressure (COPif)?

Answer 10

Draws fluid into interstitial fluid

Question 11

What is the lymphatic system?

Answer 11

Picks up excess fluid not reabsorbed at venous capillary end and returns it to venous circulation