i and d notes

Question 1

what is the size order of the pathogens, viruses bacteria protozoa fungi and helminths

Answer 1

viruses bacteria fungi protozoa helminths

Question 2

list the cells involved in innate immunity

Answer 2

granulocytes- neutrophils eosinophils and basophils
natural killer cells
macrophages
mast cells

Question 3

whats the most common circulating white blood cell

Answer 3

neutrophils

Question 4

what is a precursor to macrophages and dendritic cells

Answer 4

monocytes

Question 5

what contains highly endothelial venules

Answer 5

lymphoid follicles galt and ralt lymph nodes
respiratory associated lymphoid tissue

Question 6

what are the primary lymphoid organs

Answer 6

thymus
bone marrow

Question 7

what are secondary lymphoid organs

Answer 7

spleen
galt
malt

Question 8

what are highly endothelial venules

Answer 8

in order for lymphocytes to enter lymph nodes and malt from circulation they have to exit through highly endothelial venules which are specialised areas of vascular endothelium

Question 9

what gram bacteria contains thick layer of peptidoglycan and a small periplasm

Answer 9

gram positive