Neuroglial cell that covers choroid plexuses and produces cerebrospinal fluid (CSF); it also lines the ventricles of the brain and probably assists in the circulation of CSF.

Correct Answer: C

Rationale: Ependymal cells line ventricles, produce CSF, and aid its circulation. Neurology is a field, nerve fiber is an axon, and neurotransmitter is a chemical.

Correct Answer: A

Rationale: Purkinje cells are specialized muscle fibers in the heart’s ventricles, conducting electrical signals for contraction. GBS is a disorder, dendrites and axon terminals are neuron parts.

Correct Answer: A

Rationale: The parasympathetic nervous system (craniosacral) conserves energy, with preganglionic neurons in the brainstem and sacral cord. Agonist is a drug term, divergence is a synapse pattern, and sensory neurons are afferent.

Correct Answer: C

Rationale: Glutamate is the primary excitatory neurotransmitter in the CNS, always depolarizing postsynaptic neurons. Glycine and GABA are inhibitory, and norepinephrine has mixed effects.

Correct Answer: A

Rationale: Jerking away from a hot stove is a spinal reflex (e.g., withdrawal reflex), mediated by sensory neurons, interneurons, and motor neurons in the spinal cord, bypassing higher brain centers for speed.