Innate Immunity

Question 1

megakaryocyte

Answer 1

• platelets
  
  • activate blood clotting mechanism

Question 2

types and frequency of polymorhonuclear leukocytes

Answer 2

• neutrophils
• lymphocytes
• monocytes
• eosinophils
• basophils

Never let monkeys eat bananas

Question 3

diapedesis

Answer 3

• white blood cells can squeeze through the pores of blood capillaries even though the pore is much smaller than the cell by sliding a small portion through at a time

Question 4

chemotaxis

Answer 4

movement of white blood cells toward the source of a chemical

Question 5

hemopoetic cells

Answer 5

• cells that come from the bone marrow
  
  • RBC
  • megakaryocytes
  • mononuclear phagocytic system
  • polymorphonuclear leukocytes/ Gralulocytes
  • lymphocytes

Question 6

monocyte

Answer 6

a mononuclear phaocyte.

same as macrophage but found in blood

Question 7

macrophage

Answer 7

• monocyte that has left blood and went into tissue
• Have three jobs
  
  • sends message (cytokines) to alert neutrophils
  • overseeing reconstruction (release growth factors)
  • eating bacteria

Question 8

kupffer cell

Answer 8

macrophage in liver

Question 9

microglia

Answer 9

macrophage in brain

Question 10

dust cell

Answer 10

macrophage in lungs

Question 11

osteoclast

Answer 11

macrophage in bone

(not immune cell)

Question 12

dendritic cell

Answer 12

• mononuclear phagocyte found in peripheral tissue.
  
  • Langerhans cell found in skin
• uptakes antigens from tissue cells and is antigen presenting cell (APC)

Question 13

Lymphocytes

Answer 13

B-cells

T-cells

NK- natural killer cells

Question 14

humoral

Answer 14

extracellular

Question 15

cell-mediated

Answer 15

intracellular

Question 16

neutrophil

Answer 16

• Lots of neutrophils, constantly circulating
• short lifespan about 4 days
• actively move themselves toward problems by chemotaxis cause by cytokines

Question 17

eosinophils

Answer 17

respond mostly to parasites/worms

Question 18

mast cells

Answer 18

respond mostly to allergens

Question 19

opsonized bacteria

Answer 19

• a bacteria with an antibody on it
• “chocolate coated”

Question 20

sinusoid

Answer 20

• part of spleen.
• RBCs have to make it through the challenge course to get to the sinusoid in order to make the cut and not get killed by macrophages chillin in the red pulp