ATI LPN
Quizlet Adult Medical Surgical Head Injury Monitoring Neurological Status Questions
Question 1 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 2 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 3 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
Question 4 of 5
In the central auditory pathway, which option represents the correct sequence of structures in the pathway?
Correct Answer: A
Rationale: The auditory pathway follows: cochlear nuclei → superior olive → inferior colliculus (lateral lemniscus) → medial geniculate → auditory cortex. TMP13 p. 679
Question 5 of 5
Which of the following allows the visual apparatus to accurately determine the distance of an object from the eye (depth perception)?
Correct Answer: D
Rationale: Stereopsis (binocular parallax) enables depth perception using both eyes. TMP13 p. 644