ATI RN
Nervous System Questions Questions
Question 1 of 5
The ophthalmic division of the trigeminal nerve
Correct Answer: D
Rationale: The ophthalmic division (V1) gives branches like lacrimal and supraorbital, some with sympathetic fibers, entering via the superior orbital fissure.
Question 2 of 5
Which of the following is a genetic disease that causes neurons in the brain to waste away and die?
Correct Answer: D
Rationale: Huntington disease is a genetic disorder (CAG repeat mutation) causing progressive degeneration of neurons, especially in the basal ganglia and cortex. MS is autoimmune, polio is viral, and encephalitis is inflammatory, not genetic.
Question 3 of 5
Membrane-enclosed sac in a synaptic end bulb that stores neurotransmitters.
Correct Answer: B
Rationale: Synaptic vesicles are sacs in the synaptic end bulb that store neurotransmitters for release. Effectors are target cells, effector cell is vague, and axoplasm is axon cytoplasm.
Question 4 of 5
A synaptic arrangement in which the synaptic end bulbs of several presynaptic neurons terminate on one postsynaptic neuron.
Correct Answer: D
Rationale: Convergence is when multiple presynaptic neurons synapse on one postsynaptic neuron, integrating signals. Neuropathy is a disorder, axosomatic is a synapse location, and microglial cells are glia.
Question 5 of 5
Neuron that carries sensory information from cranial and spinal nerves into the brain and spinal cord or from a lower to a higher level in the spinal cord and brain.
Correct Answer: D
Rationale: Sensory neurons (afferent) carry sensory input from PNS to CNS. Epinephrine is a hormone, effectors are targets, and white matter is axons.