ATI LPN
Medical Surgical Nursing Neurological Disorders Questions
Question 1 of 5
Which structure carries axons from neurons in the ventral posterolateral nucleus of the thalamus to the primary somatosensory cortex?
Correct Answer: C
Rationale: The internal capsule conveys axons from the ventral posterolateral nucleus to the somatosensory cortex. TMP13 p. 610
Question 2 of 5
Like other sensory systems, the somatosensory system has a descending component that functions to regulate the overall sensitivity of the system. Which of the following selections best describes the function of the corticofugal signals transmitted from the somatosensory cortex downward to the thalamus and dorsal column nuclei?
Correct Answer: A
Rationale: Corticofugal signals modulate signal intensity perception. TMP13 pp. 610-611
Question 3 of 5
Which of the following is the middle ear ossicle that is attached to the tympanic membrane?
Correct Answer: C
Rationale: The malleus attaches to the tympanic membrane. TMP13 p. 673
Question 4 of 5
Which substance is responsible for the umami taste sensation?
Correct Answer: D
Rationale: Glutamate elicits the umami taste sensation. TMP13 p. 686
Question 5 of 5
Which molecules move from the endolymph into the stereocilia and depolarize the hair cell?
Correct Answer: D
Rationale: Potassium ions from endolymph enter stereocilia, depolarizing hair cells. TMP13 p. 677