ATI RN
Autonomic Nervous System NCLEX Questions Questions
Question 1 of 5
The third ventricle is located in the:
Correct Answer: B
Rationale: The third ventricle is a midline cavity within the diencephalon, part of the forebrain (prosencephalon). It is not in the cerebrum alone (telencephalon), hindbrain (rhombencephalon), midbrain (mesencephalon), or cerebellum.
Question 2 of 5
Which of the following is not involved with motor impulses or motor coordination?
Correct Answer: D
Rationale: All listed structures are involved in motor functions: red nucleus (midbrain motor relay), cerebellum (coordination), basal ganglia (movement refinement), precentral gyrus (primary motor cortex). 'None of the above' is incorrect.
Question 3 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 4 of 5
The terminal portion of the spinal cord is known as the:
Correct Answer: B
Rationale: The conus medullaris is the tapered, terminal end of the spinal cord (around L1-L2). The cauda equina is nerve roots below it, and the filum terminale is a fibrous extension.
Question 5 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.