When a person with an allergic tendency is first exposed to a particular allergen, what cytokine is secreted by compatible helper T cells?
a. IL-2
b. IL-3
c. IL-4
d. IL-5
e. IL-6
c
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Age-induced weakening of muscles and reduction in bone density are compounded by the skin's diminished production of ________, needed for effective calcium uptake.
Fill in the blank(s) with the appropriate word(s).
Fluid intake, diabetes and some medications can increase urine output, a condition called diuresis or __________________.
Fill in the blank(s) with the appropriate word(s).
The opposite of retraction is ________.
A. protraction B. flexion C. pronation D. elevation E. inversion
A person who is hypothyroid would be expected to:
A. have an increased basal metabolic rate. B. have reduced tolerance for cold temperatures. C. lose body weight. D. be restless and irritable. E. have symptoms similar to over-activation of the sympathetic nervous system.