Lecture 14

Question 1

Neutrophils

Answer 1

early stages of infection (Phagocytic)

Question 2

Basophils

Answer 2

Release histamine; work in allergic responses

Question 3

Eosinophils

Answer 3

Toxic against parasites and helminths (Phagocytic)

Question 4

Monocytes

Answer 4

Mature in macrophages in tissues where they’re phagocytic

Question 5

Dendritic cells

Answer 5

Found in the skin, mucous membranes, and thymus (Phagocytic)

Question 6

Lymphocytes

Answer 6

T cells, B cells, & NK cells; play a role in adaptive immunity

Question 7

Innate immunity

Answer 7

Defenses against any pathogen; rapid, present at birth

Question 8

Adaptive immunity

Answer 8

Immunity or resistance to a specific pathogen; slower to respond, has memory component

Question 9

Phagocytosis

Answer 9

Microbes are ingested into the cell

Question 10

Classical pathway

Answer 10

Antibodies bind to antigens, activating C1

Question 11

Alternative pathway

Answer 11

C3 present in the blood combines with factors B, D, & P on microbe surface

Question 12

Lectin pathway

Answer 12

Macrophages ingest pathogens, releasing cytokines that stimulate lectin production in the liver

Question 13

Cytolysis

Answer 13

proteins create a membrane attack complex (MAC)

Question 14

Opsonization

Answer 14

attachment of a phagocyte to a microbe

Question 15

Inflammation

Answer 15

bind to mast cells, releasing histamine