Which of the following is correct about the autonomic nervous system (ANS)?
A. The ANS is part of both the CNS and the PNS.
B. ANS motor neurons innervate cardiac muscle fibers, smooth muscle fibers, and glands.
C. ANS functions are involuntary.
D. ANS motor pathways always include two neurons.
E. All of the choices are correct.
Answer: E
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Which of the following structures crosses over the inferior or horizontal (third) portion of the duodenum?
(A) pancreas (B) hepatic artery (C) portal vein (D) superior mesenteric artery
It is important for the paramedic to consult with medical control prior to administering analgesia to a patient with severe flank pain and suspected acute renal failure because:
A) patients with renal failure often require high doses of analgesia. B) renal failure may cause analgesics to accumulate to toxic levels. C) most patients who are given analgesia will experience hypotension. D) analgesia will mask the patient's pain and skew further examination.
A hummingbird becomes ______________ when it relies on its energy reserves and drops its body temperature to conserve energy
Fill in the blank with the correct word.
\Which statement about paradoxical sleep is incorrect?
a. Characterized by rapid eye movements. b. Occurs before entering slow-wave sleep. c. Characterized by dreaming. d. The EEG pattern during paradoxical sleep is similar to that of an alert, awake person. e. A specified amount of paradoxical sleep appears to be required.