ATI LPN
Neurological Questions Questions
Question 1 of 5
Which of the following statements regarding the brain is true?
Correct Answer: B
Rationale: The blood-brain barrier regulates the brain’s chemical environment, protecting it from fluctuations; ventricles contain cerebrospinal fluid, not interstitial fluid.
Question 2 of 5
Which of the following statements about Parkinson's disease is true?
Correct Answer: C
Rationale: Parkinson’s is a motor disorder (tremors, rigidity) due to dopamine neuron loss in the substantia nigra, not cerebellum.
Question 3 of 5
Which of these cells are not a type of neuroglia found in the CNS:
Correct Answer: C
Rationale: Schwann cells are neuroglia in the PNS that myelinate axons, whereas astrocytes, microglia, ependymal cells, and oligodendrocytes are CNS neuroglia.
Question 4 of 5
The substance that is released at axonal endings to propagate a nervous impulse is called:
Correct Answer: C
Rationale: Neurotransmitters are chemicals released from axon terminals into the synapse to transmit signals to the next cell.
Question 5 of 5
Which one of the following is the correct sequence of nerves that exit the spinal cord, going from superior to inferior:
Correct Answer: B
Rationale: Spinal nerves exit in order: cervical (neck), thoracic (chest), lumbar (lower back), sacral (pelvis), from superior to inferior.