ATI RN
Test Questions on Autonomic Nervous System MCAT Questions
Question 1 of 5
Cerebral palsy affects neurons in which part of the body?
Correct Answer: A
Rationale: Cerebral palsy is a disorder of movement caused by damage to motor neurons in the brain (e.g., cortex, cerebellum) before, during, or shortly after birth. It doesn’t primarily affect the spine or muscles directly.
Question 2 of 5
A cluster of neuron cell bodies in the peripheral nervous system.
Correct Answer: B
Rationale: A ganglion is a cluster of neuron cell bodies in the PNS. ACh is a neurotransmitter, synaptic cleft is a gap, and neuropathy is a disorder.
Question 3 of 5
A neuron that propagates nerve impulses toward a synapse.
Correct Answer: B
Rationale: The presynaptic neuron sends nerve impulses toward a synapse, releasing neurotransmitters. Postsynaptic neurons receive signals, enteric plexuses are digestive, and synaptic end bulbs are axon parts.
Question 4 of 5
The peripheral, nucleated cytoplasmic layer of the Schwann cell. Also called sheath of Schwann.
Correct Answer: A
Rationale: The neurolemma (sheath of Schwann) is the outer cytoplasmic layer of Schwann cells, aiding PNS axon regeneration. Axon conducts signals, oligodendrocytes are CNS glia, and depression is unrelated.
Question 5 of 5
Neuron whose axon extends only for a short distance and contacts nearby neurons in the brain, spinal cord, or a ganglion; comprise the vast majority of neurons in the body.
Correct Answer: D
Rationale: Interneurons connect neurons within the CNS or ganglia, forming most CNS neurons. Axon terminals end axons, convergence is a synapse pattern, and gray matter is tissue.