Chap 14

Question 1

-rapid onset; short duration
-immune system gradually eliminates virus
-Ex: influenza, common cold

Answer 1

Acute Infections

Question 2

continuous production of low levels of virus particles, may have no symptoms but can transmit
Ex: Hepatitis(liver)

Answer 2

Chronic infections

Question 3

viral genome remains silent in host cell, can reactivate to cause illness
-Ex: varicella(chicken pox) and herpes

Answer 3

Latent infections

Question 4

viruses that can cause cancer in humans

Answer 4

Oncoviruses

Question 5

protection present at birth

Answer 5

Innate immunity

Question 6

develops throughout life as body is exposed to microbes

Answer 6

Adaptive immunity

Question 7

formation of immune cells, found in bone marrow

Answer 7

Hematopoiesis

Question 8

-engulf and destroy bacteria
-granules contain enzymes, antimicrobials
-increase in number during infection

Answer 8

Neutrophils

Question 9

-involved in allergic reactions, inflammation; granules contain histamine
-found in tissues instead of blood

Answer 9

Basophils

Question 10

-fight parasitic worms, involved in allergic reactions, granules contains antimicrobials

Answer 10

Eosinophils

Question 11

develop into macrophages and dendritic cells

Answer 11

Monocytes

Question 12

phagocytes found in blood and body tissues

Answer 12

Macrophages

Question 13

-function as “scouts”
-engulf pathogens and present it to cells of adaptive immune system for “inspection”

Answer 13

Dendritic cells

Question 14

-responsible for adaptive immunity
-B cells, T cells highly specific in recognition of antigen

Answer 14

Lymphocytes