ATI LPN
Neurological Disorders in Medical Surgical Nursing Questions
Question 1 of 5
The autonomic nervous system is part of the:
Correct Answer: B
Rationale: The ANS is a PNS subdivision, alongside the somatic system. [Level: Knowledge]
Question 2 of 5
The release of neurotransmitter at a chemical synapse in the central nervous system is dependent upon which of the following?
Correct Answer: D
Rationale: Calcium influx through voltage-gated channels in the presynaptic terminal triggers neurotransmitter release. TMP13 p. 582
Question 3 of 5
Interneurons that utilize the neurotransmitter enkephalin to inhibit afferent pain signals are most likely to be found in which region of the central nervous system?
Correct Answer: A
Rationale: Enkephalin-releasing interneurons in the dorsal horn inhibit pain transmission. TMP13 pp. 625-626
Question 4 of 5
Which of the following is a group of neurons in the pain suppression pathway that uses enkephalin as a neurotransmitter?
Correct Answer: C
Rationale: The periaqueductal gray area uses enkephalin in the pain suppression pathway. TMP13 p. 625
Question 5 of 5
Which statement concerning sensory neurons or their functional properties is true?
Correct Answer: B
Rationale: Spatial summation increases signal strength by recruiting more fibers. TMP13 p. 600