Immune system Pt.1

Question 1

Self-antigens

Answer 1

All cells are covered with variety of proteins located on surface that are not antigenic to self, but may be antigenic to others in transfusions or grafts

Question 2

MHC protiens

Answer 2

self proteins coded by genes of major histocompatibility complex MHC

Question 3

Antigen presenting cells

Answer 3

Present fragments of antigens to T cells for recognition

Question 4

Two types of lymphocytes

Answer 4

B lymphocytes
T lymphocytes

Question 5

B lymphocytes

Answer 5

humoral immunity

Question 6

T lymphocytes

Answer 6

cellular immunity

Question 7

Dendritic cells

Answer 7

Phagocytize pathogens that enter tissues, then enter lymphatics to present antigens to T cells in lymph node

Question 8

Macrophages

Answer 8

Present antigens to T cells, which activates T cell and also activates macrophage

Question 9

Adaptive Immune System

Answer 9

a defensive system that eliminates almost any pathogen

Question 10

2 main branches of adaptive system

Answer 10

1.Humoral immunity (antibody mediated)
2.Cellular immunity (cell-mediated)

Question 11

Antigens

Answer 11

generate immune response

Question 12

Immunogencity

Answer 12

ability to stimulate proliferation of specific lymphocytes

Question 13

Reactivity

Answer 13

ability to react with activated lymphocytes and antibodies released by immunogenic reactions