ATI LPN
Neurological Assessment NCLEX Questions Questions
Question 1 of 5
The speed of impulse conduction along an axon may be increased by
Correct Answer: A
Rationale: The myelin sheath insulates axons, enabling saltatory conduction, which significantly speeds up impulse transmission by allowing it to jump between nodes of Ranvier.
Question 2 of 5
Which of the following results from stimulation by the parasympathetic nervous system?
Correct Answer: D
Rationale: The parasympathetic system promotes 'rest and digest,' stimulating salivation, unlike sympathetic effects like increased heart rate.
Question 3 of 5
Which of the following statements regarding brain activity is true?
Correct Answer: D
Rationale: PET and fMRI map brain activity to functions; Gage’s injury was prefrontal, and hemispherectomy/corpus callosotomy patients can survive and function.
Question 4 of 5
The brain and spinal cord are the organs of the----------
Correct Answer: A
Rationale: The central nervous system (CNS) comprises the brain and spinal cord, distinct from the peripheral nervous system (PNS), autonomic nervous system (ANS), and cerebrospinal fluid (CSF).
Question 5 of 5
Which of the following best describes the waxy-appearing material called myelin:
Correct Answer: D
Rationale: Myelin is a lipid-rich insulating layer around axons, formed by neuroglia (e.g., Schwann cells in PNS, oligodendrocytes in CNS), speeding signal conduction.