Adaptive immune system

Question 1

() immune system is a specific defensive system that eliminates almost any pathogen or abnormal cell in body
Shortcoming: must be primed by initial exposure to specific foreign substance

Answer 1

Adaptive

Question 2

Adaptive immunity characteristics:
-It is (): recognizes and targets specific antigens
-It is (): not restricted to initial site
-It has (): mounts an even stronger attack to “known” antigens (second and subsequent exposures)

Answer 2

specific
systemic
memory

Question 3

Two main branches of adaptive system
1.() (antibody-mediated) immunity (B- lymphocytes)
2.() (cell-mediated) immunity (T- lymphocytes)

Answer 3

Humoral
Cellular

Question 4

() immunity
“()” means “in the body fluids” – plasma/blood & lymphatic fluid
Antibodies, produced by
()-lymphocytes,circulate freely in body fluids
Bind temporarily to target cell
Mark targets for ()
Phagocytes, complement, other immune cells actually destroy the targets

Answer 4

Humoral
B
destruction

Question 5

() Immunity
()-Lymphocytes act against target cell
Directly—by killing infected cells
() T lymphocytes
Indirectly—by releasing chemicals that enhance inflammatory response; or activating other lymphocytes or macrophages
() T lymphocytes

Answer 5

Cellular
T
Cytotoxic
Helper