Capillary Exchange

Question 1

Definition

Answer 1

• Interstitial fluid found between cells
• substances move to and from blood and tissue cells through capillary walls
• exchange due [] gradient

Question 2

Routes

Answer 2

• direct diffusion through membranes
• diffusion via intercellular cleft
• diffusion via potes if fenestrated capillaries
• transport via vesicles

Question 3

Fluid movement

Answer 3

• BP forces fluid and solutes out
• osmotic pressure draws fluid in
• BP>osmotic pressure at arterial end
• BP

Question 4

Varicose veins

Answer 4

• pooling of blood in feet and legs, inefficient venous return caused by inactivity and pressure on veins
• overworked Valves lose shape and veins become twisted and dilated
• can lead to thrombophlebitis

Question 5

Thrombophlebitis

Answer 5

• inflammation of veins caused by a clot formed in a vessel with poor circulation
• can lead to pulmonary embolism