Ch 27

Question 0

Platelets

Answer 0

Cells without nuclei

Initiate blood clot

Question 1

Red blood cells

Answer 1

Transport oxygen and carbon dioxide

Erythrocytes

Question 2

White blood cells

Answer 2

Leukocytes

In blood and lymphatic system

Question 3

Basophils

Answer 3

Release histamine; promote T cell development

Question 4

Eosinophils

Answer 4

Kill large parasites by discharging destructive enzymes

Question 5

Neutrophils

Answer 5

Engulf large invading pathogens (70% WBC)

Question 6

Mast cells

Answer 6

Release histamine when damaged

Question 7

Monocytes

Answer 7

Become macrophages

Question 8

Macrophages

Answer 8

Engulf and digest microorganisms

Question 9

Dendritic cells

Answer 9

Present antigen to T-cells

Question 10

B cells

Answer 10

Differentiate to form plasma cells and memory cells (form in bone marrow)

Question 11

Plasma cells

Answer 11

Secrete antibodies (weapons to destroy foreign invaders)

Question 12

T cells

Answer 12

Kill virus infected cells (produced in the thymus)

Question 13

Natural killer cells

Answer 13

Attack and lyse virus infected or cancerous cells

Question 14

Complement proteins

Answer 14

Group of proteins help lyse invaders

Question 15

Interferons

Answer 15

Release by virus-infected cells; ACTIVATE PHAGOCYTES; stimulate production of proteins in neighboring cells that’ll inhibit viral replication

Question 16

6.5 opsenization

Answer 16

Coating of pathogen with Ab’s and triggering of phagocytic cells