TISSUE FLUID

Question 1

what is tissue fluid

Answer 1

fluid that bathes cells and allows the exchange of substances between blood and cells
contains more glucose, fatty acids, salts and oxygen for cells
removes co2 and waste

Question 2

what is hydrostatic pressure

Answer 2

pressure from the force of a liquid on a surface

Question 3

what is osmotic pressure

Answer 3

ability for water to move

Question 4

describe the formation of tissue fluid

Answer 4

1. increased hydrostatic pressure caused by narrower capillaries compared to arterioles and the contraction of ventricles
2. hydrostatic pressure resisted by:
   hydrostatic pressure of tissue fluid on outside of capillaries
   lower water potential of blood
3. overall pressure forces fluid and small molecules out of capillary. cells and large proteins are left in the blood
   this is called ultrafiltration and occurs at the arteriole end

Question 5

describe the return of tissue fluid

Answer 5

1. loss of fluid inside capillaries lowers hydrostatic pressure. hydrostatic pressure at venule end is higher outside the capillary so tissue fluid is forced back in
2. osmotic forces from proteins in plasma pulls water back into the capillaries
3. remaining tissue fluid enters lymph vessels and drains back into the veins near the heart

Question 6

what is the function of lymph

Answer 6

return fluid to central circulation
plays a role in immunity

Question 7

components of the lymph system

Answer 7

lymphatic capillaries
lymph nodes
lymphatic tissue

Question 8

lymph contains lymphocytes

Answer 8

made in lymph nodes
filter out foreign matter from lymph
plays a role in immunity (WBC)

Question 9

how is lymph moved

Answer 9

hydrostatic pressure
contraction of body muscles squeezes lymph vessels

Question 10

what is lymphoedema

Answer 10

lymph system is damaged and prevents fluid from returning to blood

Question 11

what is lymphoma

Answer 11

cancer of the lymphatic system