Which would NOT be caused by a decrease in plasma Ca2+ levels in an otherwise normal person?
A. an increase in plasma parathyroid hormone levels
B. an increase in plasma 1,25-dihydroxyvitamin D3 levels
C. an increase in nerve and muscle excitability
D. a decrease in the filtered load of Ca2+
E. an increase in bone density
E
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The third, innermost layer of the meninges is called the ________.
A. dura mater B. arachnoid mater C. pia mater D. epidural mater
A reduction in sensitivity to a continually applied stimulus is called
A. sensation. B. tonicity. C. conscious awareness. D. adaptation. E. transduction.
Which group of drugs works by dopamine antagonism?
a. azapirones b. phenothiazines c. progestins d. TCAs
Acetylcholine is:
A) an ion pump B) a source of energy for muscle contraction C) a component of thick myofilaments D) an oxygen binding protein E) a neurotransmjtter