ATI RN
Nervous System Multiple Choice Questions and Answers Questions
Question 1 of 5
The prefrontal cortex, responsible for personality, decision-making, and social behavior, is located in the:
Correct Answer: A
Rationale: The prefrontal cortex in the frontal lobe governs personality and decisions.
Question 2 of 5
The vestibulocochlear nerve (VIII) is associated with:
Correct Answer: A
Rationale: The vestibulocochlear nerve (CN VIII) handles hearing and balance.
Question 3 of 5
Huntington's chorea has been linked with a deficiency in the amino acid:
Correct Answer: B
Rationale: Huntington’s disease involves reduced GABA (inhibitory neurotransmitter) function due to striatal neuron loss, not a dietary deficiency. Others are unrelated.
Question 4 of 5
Clostridium botulinum releases this enzyme that destroys peptide bonds.
Correct Answer: B
Rationale: Clostridium botulinum produces botulinum toxin, an endopeptidase that cleaves SNARE proteins, inhibiting neurotransmitter release. Amylase digests starch, exopeptidases cleave ends, protein kinase phosphorylates.
Question 5 of 5
Which of the following is referred to as either physical barriers or physiologic processes (transport system) that separate the circulating blood from the brain extracellular fluid in the central nervous system (CNS)?
Correct Answer: B
Rationale: The blood-brain barrier (BBB) restricts substance movement between blood and brain fluid, protecting the CNS. The Circle of Willis supplies blood, corticobulbar projections control cranial nerves, and the lateral corticospinal tract governs skilled hand movements.