Biology 112 Chapter 12

Biology 110 Chapter 12
1. Lymph fluid originates from ________________ ____________________.
2. Peyer’s patches and the tonsils are part of the collection of small lymphoid tissue referred to as
___________________ _________________ ______________ ___________________.
3. Harmful or disease-causing microorganisms are called _______________________.
4. The process by which WBCs and phagocytes are drawn to an area of inflammation is called
5. The mixture of dead neutrophils, broken-down tissue cells, and living or dead pathogens is called
6. One effect of complement fixation that causes the cell membranes of foreign cells to become sticky so
that they are easier to phagocytize is called ______________________________.
7. Antibody-producing factories derived from B cell clones are called ______________ ___________.
8. The process in which macrophages engulf antigens, process them internally, and display parts of the
processed antigens on their external surface (in combination with one of their own proteins) is called
________________________ _________________________.
9. Systemic acute allergic response is called ________________________ ___________________.
10. Antibodies are also referred to as _________________________________________.
_____1. Lymph flows __________.
a. in a circular pattern
c. towards the heart
e. into the capillaries
b. away from the heart
d. down the extremities
_____2. Which of the following is NOT true of lymph nodes?
a. They remove foreign material from the lymph fluid.
b. They have valves similar to those found in veins.
c. They contain lymphocytes.
d. They act as filters along the lymphatic vessels.
e. They contain macrophages.
_____3. Which of the following is NOT a type of lymphoid organ?
a. spleen
b. thymus gland
c. tonsils
d. appendix
e. Peyer’s patches
____4. The lymph organ that programs T cells and functions at peak levels during youth is the ____.
a. thymus
b. spleen
c. appendix
d. tonsils
e. Peyer’s patches
_____5. The immune system is also called the ________.
a. nonspecific defense system
b. surface defense system
c. bloodborne system
d. specific defense system
e. cell-mediated system
_____6. Compared to the nonspecific defense system, the immune system is _____.
a. faster
b. slower
c. the same speed
d. sometimes faster and sometimes slower
e. not comparable in speed
_____7. The inflammatory process begins with release of chemicals, which do all of the following
EXCEPT _____.
a. dilate blood vessels
b. attract phagocytes to the area
c. stimulate the release of lysozyme
d. cause the capillaries to become leaky
e. activate pain receptors
_____8. Cells invaded by viruses release _______________ to protect nearby cells and hinder further
multiplication of the viruses.
a. histamine
b. interferon
c. kinins
d. interleukins
e. pyrogens
_____9. The body’s “thermostat” is located in the ___________.
a. hypothalamus
b. thalamus
c. pineal gland
d. cerebellum
e. medulla oblongata
____10. The type of immunity that a fetus derives from its mother is called _____________.
a. naturally acquired active immunity
b. naturally acquired passive immunity
c. artificially acquired active immunity
d. artificially acquired passive immunity
e. artificially acquired natural immunity
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