lymphatic system

Question 1

lymphatic organs

Answer 1

primary- produce and mature lymhocytes
thymus
bone marrow

secondary-filter/
lymphnode
spleen

difuse
adenoids
tonsils
peyers patches
appendix
MALT-musosa associated lymphatic tissue

Question 2

functions

Answer 2

produce, maintain, mature lymphocytes

drain excess fluid and proteins and return to circulatory system

transport fats vitamins, from digestive tract to liver for process

remove pathogens and toxins at lymphnodes

Question 3

lymphocytes

Answer 3

identify, attack and develop immunity to specific pathogen

Question 4

lymphocytes production and maturation

Answer 4

production in Bone marrow

b cells- mature in bone marrow

t cells- mature in thymus

Question 5

process of production

Answer 5

lymphoid stem cell

forms lymphoblast

will then develop in NKC, B OR T CELL

Question 6

lymph

Answer 6

fluid

background matrix

find macrophages, b and t cells- defense response

look for abnormal, forgin cells, forign proteins, cancer cells

Question 7

lymph flow

Answer 7

blood leaks out of capalieries becomes tissue fluid

tissue fluid is collected by lymph capalieries

lymph vessels to lymph ducts

then lymph ducts to circulartory at subclavian vein

Question 8

odema

Answer 8

excessive accumulation of interstital fluid in tissue spaces

high blood capilary pressure

obstruction to lymph flow

Question 9

lymph capillaries

Answer 9

similar to blood capilaries except
thin wall
start as pocket- one way flow only not a continous
larger diameter

basement membrane incomplete allow fluid in but not out

squamous endothelium cells overlapping cells allow in but not out

Question 10

lymph vessels

Answer 10

carry lymph
lymphnodes along the way

more valves and thinner then veins

respiartory and muscular pump effect helps move fluid

Question 11

lacteals

Answer 11

specialised lymph capilaries in small intestine

transport lipids from here

Question 12

2 lymph ducts

Answer 12

thoarcic - left side of body and all lower limb and

and right lymphatic duct- from right hand of the body

Question 13

red bone marrow

Answer 13

produce b and t cells and mature b cells

Question 14

thymus

Answer 14

mediastinum

peodce thymin hormone

Question 15

spleen

Answer 15

reduce and destroy dying damaged red blood cells

will store iron

site of macrophages and b and t cells can be stimulated here

red pulp
inside fibrous capsule

Question 16

lymph nodes

Answer 16

foreign matter is trapped
destroyed by macrophages, t and b cells