Domanda del libro di testo
Complement activation promotes all of the following except:
a. Cell lysis
b. Inflammation
c. Opsonization
d. Interferon release
e. Chemotaxis of neutrophils and other cell
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21. The Immune System
Phagocytosis
Scelta multipla
Which of the following is/are secreted by leukocytes and macrophages and result(s) in a fever?
A
histamine
B
pyrogens
C
keratin
D
heparin
E
antibodies
Guida verificata passo dopo passo1
Identify the role of leukocytes and macrophages in the immune response. Leukocytes, or white blood cells, and macrophages are key players in the body's defense mechanism against infections.
Understand the concept of fever as a physiological response. Fever is a common response to infection, where the body's temperature is elevated to help fight off pathogens.
Learn about pyrogens, which are substances that can induce fever. Pyrogens are typically released by leukocytes and macrophages in response to infection.
Differentiate between the substances listed in the problem: histamine, keratin, heparin, and antibodies. Recognize that pyrogens are specifically involved in the fever response.
Conclude that pyrogens are the substances secreted by leukocytes and macrophages that result in a fever, as they act on the hypothalamus to increase body temperature.
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