ATI LPN
Quizlet Adult Medical Surgical Head Injury Monitoring Neurological Status Questions
Question 1 of 5
Which sequence of a reflex arc is correct?
Correct Answer: A
Rationale: Reflex arc: receptor → sensory neuron → interneuron (CNS) → motor neuron → effector. [Level: Knowledge]
Question 2 of 5
Which of the following is best described as an elongated, encapsulated receptor found in the dermal pegs of glabrous skin that is especially abundant on lips and fingertips?
Correct Answer: C
Rationale: Meissner corpuscles are elongated, encapsulated receptors in glabrous skin dermal pegs, abundant on lips and fingertips, detecting light touch. TMP13 pp. 596, 607-608
Question 3 of 5
Which system transmits somatosensory information with the highest degree of temporal and spatial fidelity?
Correct Answer: B
Rationale: The dorsal column-medial lemniscal system provides high temporal and spatial fidelity for touch and proprioception. TMP13 p. 610
Question 4 of 5
The highest degree of pain localization comes from which of the following?
Correct Answer: A
Rationale: Simultaneous tactile and pain stimulation enhances pain localization accuracy. TMP13 p. 624
Question 5 of 5
A 23-year-old gymnast lifts her right leg above her head while in the standing position. Activation of a single pyramidal cell in the motor cortex leads to stimulation of 2000 muscle fibers in her right quadriceps muscle. Which of the following best describes the type of neuronal circuitry activated in this woman when she lifts her leg?
Correct Answer: B
Rationale: Diverging circuitry amplifies signals from one neuron to many muscle fibers. TMP13 p. 602