The type of circuit in which branches of postsynaptic neurons synapse with earlier neurons in the path.

Correct Answer: C

Rationale: A reverberating circuit involves postsynaptic neurons feeding back to earlier neurons, creating sustained activity. Convergent and divergent describe synapse patterns, and parallel is not standard.

Correct Answer: B

Rationale: Sensory receptors (e.g., olfactory receptors in the nose) detect chemical changes (odors). Enteric plexuses control digestion, cranial nerves transmit signals, and neuroglia support.

Correct Answer: C

Rationale: Astrocytes (star-shaped) and oligodendrocytes (fewer processes) are similar in having branching processes, unlike microglia (small, mobile) or ependymal cells (ciliated, lining ventricles).

Correct Answer: B

Rationale: Neuroglia (e.g., astrocytes, oligodendrocytes) support and nourish neurons, which send electrical signals. Effectors respond, and receptors detect stimuli.

Correct Answer: C

Rationale: The resting membrane potential (~-70 mV) is the voltage difference across a neuron’s membrane at rest, due to ion gradients. Action and graded potentials are dynamic, and electrochemical is a broader term.