Micro Lec 7

Question 1

Acquired Immunity

Answer 1

carried out by a subset of cells called lymphocytes

Question 2

Lymphocytes

Answer 2

2 types which is B and T cells. Both originate in bone marrow. Both found in blood and lymphatic systems.

Question 3

B cells

Answer 3

maturation of B cells takes place in bone marrow and then they migrate to lymph nodes and spleen.

Question 4

T cells

Answer 4

maturation of t cells takes place in thymus. Primary defend against intracellular pathogens and foreign tissue. 2 main types are Helper T Cells and Cytotoxic T Cells

Question 5

Antibodies

Answer 5

Antibodies are produced of subset of B cells called plasma cells.Primary defend against pathogens circulating in bodies fluids. Secondary immune response = memory response due to memory cells, another type of B cells.

Question 6

Helper T Cells

Answer 6

Sacrete lymphokines to activate other T and B cells and phagocytes.

Question 7

Cytotoxic T Cells

Answer 7

Destroy target cells on contact. In most instances B and T cells work together and 2nd and 3rd line of defense work together

Question 8

Cytokines

Answer 8

protein based cell signals