lymphatic

Question 1

name the 4 components of the lymphatic system

Answer 1

lymph, lymphatic vessels, lymphatic tissue, red bone marrow

Question 2

name the 3 functions of the lymphatic system

Answer 2

drainage of interstitial fluid, facilitation of immune response, transporting dietary lipids and lipid soluble vitamins

Question 3

define hydrostatic pressure

Answer 3

the pushing force exerted by a fluid against blood vessel walls

Question 4

name the two common hydrostatic pressures at the arteriole end and venue end retrospectively

Answer 4

arteriole end - 30mmHg and Venus end- 10mmHG

Question 5

define interstitial fluid pressure

Answer 5

proposed to be slightly negative contributing to the pull of fluid out of the capillaries

Question 6

what is the average force of interstitial fluid pressure

Answer 6

-3mmHg

Question 7

define colloidal osmotic pressure

Answer 7

pulling force created by blood proteins that are too large to pass through pores of the membrane

Question 8

what is the average colloidal osmotic pressure

Answer 8

-28mmHg

Question 9

interstitial osmotic pressure

Answer 9

small. umber of plasma proteins that have leaked into the extracellular space

Question 10

average interstitial osmotic pressure

Answer 10

-8mmHg

Question 11

name the 1st stage of lymph formation

Answer 11

1. hydrostatic pressure forces blood plasma out of capillaries

Question 12

name 2nd stage of lymph formation

Answer 12

2. bloodplasma outside of capillary is labelled interstitial fluid

Question 13

name 3rd stage of lymph formation

Answer 13

blood proteins that are too large to leave capillary (albumin) create colloidal osmotic pressure inside capillary

Question 14

name 4th stage of lymph formation

Answer 14

colloidal osmotic pressure pulls some/most of the interstitial fluid back into capillaries

Question 15

name 5th stage of lymph formation

Answer 15

interstitial fluid left behind waits to be drained or swelling will occur

Question 16

name 6th stage of lymph formation

Answer 16

drainage occurs via lymphatic vessels- the vessels have lower pressure than the interstitial fluid meaning it can flow straight in and is pushed through via aid of one-way mini valves

Question 17

lymph vessels are made up of what

Answer 17

bundles of lymph capillaries

Question 18

what are lymph capillaries in the small intestine know as

Answer 18

lacteals

Question 19

what do lacteals carry

Answer 19

fat laden lymph - chyle

Question 20

the lacteals join together to form vessels, that drains the lymph where?

Answer 20

the cisterna chyli

Question 21

what is the role of a lymph node

Answer 21

to filter lymph

Question 22

what structural feature surrounds lymph nodes

Answer 22

connective tissue

Question 23

what is the role of reticular cells in a lymph node

Answer 23

to phagocytise unwanted substances

Question 24

what do lymophocytes produce

Answer 24

antibodies

Question 25

where is the spleen located

Answer 25

left side of abdominal cavity, below diaphragm

Question 26

what is the use of red pulp in the spleen

Answer 26

removes worn out platelets and RBCs

Question 27

what is the us elf white pulp in the spleen

Answer 27

white pulp initiates immune functions and removes blood born pathogens

Question 28

what is the main role of the spleen

Answer 28

to filter blood