ATI LPN
Neurology Exam Questions Questions
Question 1 of 5
The job of the Nervous System is:
Correct Answer: D
Rationale: The nervous system receives sensory input (via receptors), integrates it (in the brain/spinal cord), and triggers motor output (via effectors), encompassing all listed functions.
Question 2 of 5
Neurotransmitters that open Na⁺ channels and trigger action potentials in receiving cells are called
Correct Answer: C
Rationale: Excitatory neurotransmitters (e.g., glutamate) depolarize the postsynaptic membrane by opening Na⁺ channels, increasing the likelihood of an action potential.
Question 3 of 5
The relationship between spinal nerves and the spinal cord is most like the relationship between
Correct Answer: C
Rationale: Spinal nerves branch off the spinal cord like roads from a highway, carrying signals to and from the periphery.
Question 4 of 5
Which of the following brain regions controls the secretion of pituitary hormones and exerts direct control over many other aspects of homeostasis?
Correct Answer: B
Rationale: The hypothalamus regulates pituitary hormone release and homeostasis (e.g., temperature, hunger).
Question 5 of 5
The nervous system is the centre of all mental activity including all the following except
Correct Answer: C
Rationale: The nervous system governs mental activities like thinking, learning, and memory, but digestion is primarily controlled by the enteric nervous system and autonomic regulation, not mental activity.