All of the following functions are performed by cytokines except:

a. Stimulating production of blood cells
b. Inducing macrophages to attack senescent cells
c. Regulating cell differentiation
d. Monitoring trafficking of mature blood cells

ANS: B
Cytokines do not induce macrophages to attack senescent or dying cells. They perform all the other functions listed.

Health Professions

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What are the large, diamond-shaped muscles that cover the back and portions of the neck, whose specific regions can contract independently?

A) Trapezius B) Latissmus dorsi C) Levator scapulae D) Rhomboid

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Degranulation of IgE-coated mast cells is associated with which of the following conditions?

a. Hereditary angioedema b. Lupus erythematosus c. Erythema multiforme d. Contact allergy e. None of the above

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