lymphatic system

Question 1

3 functions of the lymphatic system

Answer 1

1. excess fluid
2. fat absorption
   3.helps fight disease

Question 2

excess fluid :

Answer 2

> fluid tends to leak out at the arterial end of the blood capillary due to high pressure and it returned through the lymphatic system

Question 3

what is the fluid returned to the blood known as

Answer 3

lymph

Question 4

how does lymph enter the bloodstream again

Answer 4

subclavian vein

Question 5

helps fight disease

Answer 5

> lymph entering the lymph nodes contains cell debris, foreign particles and micro organisms. some of which can cause disease and need to be destroyed
inside the nodes are leukocytes and macrophages that work together to get rid of the foreign particles through phagocytosis

Question 6

what is lymph

Answer 6

• a fluid that comes from between cells
• a clear yellow liquid

Question 7

how is lymph returned to the circulatory system?

Answer 7

blind lymph capillary > lymph vessel > lymph node > lymph vessel > lymph duct > subclavian vein > returns to blood

Question 8

how is lymph moved around

Answer 8

it is pushed through by your skeletal muscles
they contract to push through and backflow is prevented by valves

Question 9

lymph vessels

Answer 9

one way of carrying fluids away from the tissues

Question 10

lymph capillaries

Answer 10

larger and more permeable than blood capillaries

Question 11

lymph nodes

Answer 11

-occur at intervals on the vessels
- been shaped
-between 1-25 mm