Inflammation and Immunity

Question 1

cytokine

Answer 1

small protein used in cell signaling to initiate immune response

Question 2

which WBCs are the least abundant?

Answer 2

Monocytes (macrophages) - 3-8%
Eosinophils - 1-6%
Basophils - 0-2%

Question 3

what is a natural killer cell?

Answer 3

lymphocyte responsible for killing virally infected cell

Question 4

what WBCs are most abundant?

Answer 4

neutrophils - 60-80%
lymphocytes - 20-30%

Question 5

neutrophil

Answer 5

major responder to bacterial infection

Question 6

lymphocytes

Answer 6

major responder to viruses and fungi

Question 7

eosinophils

Answer 7

major responder to allergies and parasitic infections

Question 8

basophils

Answer 8

stimulate mast cells to release histamines
inflammation and allergic reaction

Question 9

humoral/adaptive immunity cells

Answer 9

B cells
T cells

Question 10

innate immunity cells

Answer 10

Neutrophils
macrophages

NK cells - even though this is technically a T cell, it responds non-specifically

Question 11

antigen presenting cell

Answer 11

grab and then display antigen
producing cytokines to call other cells

Question 12

what do B cells do?

Answer 12

produce antibodies

Question 13

T cell differentiation

Answer 13

CD4+ cells are Th1 and Th2
CD8+ cells are cytotoxic cells

HIV targets CD4+ cells, knock out most of immune system