Electrical signals called _____ travel along the plasma membrane of a neuron and stimulate the release of chemicals called _____ that are then used to communicate with other cells
a) action potentials; neurotransmitters
b) action potentials; hormones
c) action potentials; cytokines
d) threshold potentials; cytokines
e) threshold potentials; neurotransmitters
Answer: a
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a) stage one NREM sleep. b) stage two NREM sleep. c) stage three NREM sleep. d) stage four NREM sleep. e) REM sleep.
Sam adjusts solution A to increase its acidity. This means that the
A. pH of the solution has increased. B. solution will now accept more protons. C. number of hydrogen ions in the solution has decreased. D. number of hydrogen ions in the solution has increased. E. solution is closer to neutrality.
Bone, or osseous, tissue provides protection for our vital organs since the inorganic ground substance is:
A) calcium phosphate crystals. B) both collagen and elastic fibers. C) mostly water, dissolved solutes, and proteins. D) collagen fibers.
Which of the following interventions would the paramedic LEAST likely perform on a patient with diabetic ketoacidosis?
A) Insulin administration B) Endotracheal intubation C) Sodium bicarbonate administration D) Infusion of 1 to 2 L of normal saline