Which of the following BEST describes a neurotransmitter?
a. long fibers that serve to conduct electrical impulses
b. small chains of amino acids that act on the nervous system
c. chemical messengers released across the synaptic cleft
d. the entire complement of heritable information
C
Neurotransmitters are the chemical messengers released across the synaptic cleft. The dendrites then respond to the message in an inhibitory or excitatory manner.
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Which of the following best explains why anyone would ever experiment with an illegal substance?
a. As a way of rebelling against parental authority b. Because it is forbidden c. For the thrill of itâ€"without getting caught d. Friends are encouraging it
The nurse is concerned that an older patient with renal failure is developing malnutrition. What did the nurse assess in this patient? (Select all that apply.)
A) Hematocrit level 30% B) Hemoglobin level 7 g/dL C) Serum albumin level 2.5 g/100 mL D) Blood glucose level 110 mg/dL E) Weight loss of 6% over the last month
The communication of clinical, research, and theoretical findings for the purpose of bringing new knowledge to the point of care is
a. explanation. b. dissemination. c. evaluation. d. demonstration.
The basic science applied to understanding the health effects associated with chemical expo-sures is:
1. Toxicology 2. Pharmacology 3. Chemistry 4. Environmental epidemiology