week 7 - immune system

Question 1

neutrophil

Answer 1

most predominant type of granulocyte in blood
innate immune response

Question 2

eosinophil

Answer 2

granulocyte
defence against parasitic infections
atopic reactions such as asthma
easily stained by eosin

Question 3

basophil

Answer 3

low numbers in normal blood
similar function as eosinophils and mast cells
stained by basic dyes (contain acidic proteins)

Question 4

macrophage

Answer 4

phagocytic cells
innate immunity

Question 5

b cells

Answer 5

differentiate into antibody secreting plasma cells as part of the specific immune response

Question 6

t cells

Answer 6

cytotoxic T lymphocyte - kills virus inceted cells
helper t lymphocytes - activate other cells e.g. b-cells

Question 7

NK cells

Answer 7

large, granular lymphocytes which form part of the innate immune response
lack antigen-specific receptors, they can detect and attack some virus-infected cells

Question 8

mast cells

Answer 8

found mainly near small blood vessels
when active release substances from granules that affect vascular permeability
granules contain histamine and heparin

Question 9

primary lymphoid tissues

Answer 9

thymus and bone marrow
where immune cells are created and matured
produced in haematopoietic stem cells

Question 10

bone marrow

Answer 10

two types - red and yellow
red - haematopoiesis
yellow - adipocytes