The processes of immunity are classified in which of the following ways?
a. innate or acquired c. class A and class B
b. rapid and long-term d. grade I and grade II
A
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A Correct. The processes of immunity used by the body are classified as either innate (natural) or acquired. Innate or natural immunity consists of many factors relatively nonspecific. These include physical barriers such as skin, mucous membranes, and cough reflex. Natural immunity also includes nonspecific immune cells such as phagocytes and lymphocytes. Acquired immunity is a specific immunity, triggered then a person has had prior contact with a foreign agent. This activates the humoral system (B lymphocytes) and the cell-mediated system (T lymphocytes).
B Incorrect. The processes of immunity used by the body are not classified as rapid and long-term.
C Incorrect. The processes of immunity used by the body are not classified as class A and class B.
D Incorrect. The processes of immunity used by the body are not classified as grade I and grade II.
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