ATI LPN
Quizlet Adult Medical Surgical Head Injury Monitoring Neurological Status Questions
Question 1 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 2 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
Question 3 of 5
A 6-year-old boy with albinism is taken to the ophthalmologist because of difficulty seeing. Testing shows that his visual acuity is reduced. Which of the following is the most likely cause of the decrease in visual acuity in this boy?
Correct Answer: D
Rationale: Albinism causes photophobia due to reduced melanin, scattering light and reducing acuity. TMP13 pp. 648-649
Question 4 of 5
When parallel light rays pass through a concave lens, which of the following will occur?
Correct Answer: B
Rationale: A concave lens diverges light rays. TMP13 p. 636
Question 5 of 5
Which cells in layer IV of the primary visual cortex detect orientation of lines and borders?
Correct Answer: D
Rationale: Simple cells in layer IV detect line orientation and borders. TMP13 p. 664