ATI RN
Autonomic Nervous System NCLEX Questions Questions
Question 1 of 5
Cerebrospinal fluid (CSF) is found within:
Correct Answer: D
Rationale: CSF circulates in the ventricles, central canal of the spinal cord, and subarachnoid space, cushioning the CNS. The epidural space and dural sinuses do not normally contain CSF.
Question 2 of 5
A disease of the nervous system in which the myelin sheaths of neurons are altered by the formation of plaques is:
Correct Answer: A
Rationale: Multiple sclerosis (MS) is characterized by demyelination and plaque formation in the CNS, causing neurological deficits. Epilepsy involves seizures, cerebral palsy is a developmental disorder, Parkinson’s affects dopamine, and neurosyphilis is infection-related.
Question 3 of 5
Which layer of connective tissue of nerve covers the individual fiber?
Correct Answer: D
Rationale: Individual nerve fibers (axons) are covered by endoneurium, not listed here. Perineurium (A) surrounds fascicles, epineurium (C) encases the entire nerve, and pericardium (B) is unrelated (heart tissue). Thus, 'none of the above' (D) is correct.
Question 4 of 5
The following is true about receptors:
Correct Answer: D
Rationale: Pain receptors (nociceptors) are slowly adapting (not rapidly, ruling out A), pressure receptors (e.g., Pacinian corpuscles) are rapidly adapting (not slowly, ruling out B), and touch receptors (e.g., Meissner’s) are rapidly adapting (not non-adaptive, ruling out C). Receptors can indeed be stimulated by chemical changes (D), as seen in chemoreceptors and nociceptors.
Question 5 of 5
Sensation of pain:
Correct Answer: B
Rationale: Pain is transmitted via the lateral spinothalamic tract (B), not posterior columns (A, which carry vibration/position), nor the 9th cranial nerve (C, glossopharyngeal, mainly taste/pharynx). Perception involves the cortex, but not 'only' there (D). B is correct.