The circulating substances that affect the hypothalamus and initiate fever are
A)complements.
B)interferons.
C)leukotrienes.
D)pyrogens.
E)lysozymes.

Question

Quizplus · Accepted Answer

The substances that affect the hypothalamus and initiate fever are pyrogens. Pyrogens are either endogenous (produced by the body, such as interleukin-1) or exogenous (produced by external sources, such as bacterial endotoxins). Pyrogens cause the hypothalamus to increase the body's temperature set point, resulting in fever.

The Circulating Substances That Affect the Hypothalamus and Initiate Fever