PATHOPHYSIOLOGY ACTUAL EXAM 2
140 QUESTIONS AND ANSWERS
What are the two types of adaptive immunity?
humoral and cell-mediated
What is the principal cell in humoral and cell-mediated immunity?
Humoral - B cell
Cell-Mediated - T cell
When activated what do B cells become?
B cells form memory cells and plasma cells that produce
antibodies to antigens
When activated what happens to T cells?
T cells turn into memory cell, cytotoxic cells, suppressor cells,
and helper cells.
,What does humoral immunity produce and what does it defend
against?
Humoral immunity involves the production of antibodies and is
the main defense against bacteria and bacterial toxins.
What cell does cell-mediated immunity invovle, and what does it
defend against?
Cell-mediated immunity involves lymphocytes that attack and
destroy foreign material; it defends against viruses, fungi,
parasites, some bacteria, rejects transplanted organs, and
eliminates abnormal cells formed during cell division.
How long does it take for adaptive immunity to respond after
initial contact?
a week or more
, What is immune memory?
After first exposure to an antigen, some lymphocytes remember
it. If the body sees the same antigen again, it responds faster
and stronger.
What is the chain of events after the entry of a foreign antigen tot
he body?
- Recognition of foreign antigen
- Proliferation of lymphocytes that are programmed to respond
to the antigen form a large group (clone) of cells
- Destruction of foreign antigen by the responding lymphocytes
What does MHC stand for?
major histocompatibility complex
140 QUESTIONS AND ANSWERS
What are the two types of adaptive immunity?
humoral and cell-mediated
What is the principal cell in humoral and cell-mediated immunity?
Humoral - B cell
Cell-Mediated - T cell
When activated what do B cells become?
B cells form memory cells and plasma cells that produce
antibodies to antigens
When activated what happens to T cells?
T cells turn into memory cell, cytotoxic cells, suppressor cells,
and helper cells.
,What does humoral immunity produce and what does it defend
against?
Humoral immunity involves the production of antibodies and is
the main defense against bacteria and bacterial toxins.
What cell does cell-mediated immunity invovle, and what does it
defend against?
Cell-mediated immunity involves lymphocytes that attack and
destroy foreign material; it defends against viruses, fungi,
parasites, some bacteria, rejects transplanted organs, and
eliminates abnormal cells formed during cell division.
How long does it take for adaptive immunity to respond after
initial contact?
a week or more
, What is immune memory?
After first exposure to an antigen, some lymphocytes remember
it. If the body sees the same antigen again, it responds faster
and stronger.
What is the chain of events after the entry of a foreign antigen tot
he body?
- Recognition of foreign antigen
- Proliferation of lymphocytes that are programmed to respond
to the antigen form a large group (clone) of cells
- Destruction of foreign antigen by the responding lymphocytes
What does MHC stand for?
major histocompatibility complex
