Practice question
Question
Which nerve fiber type is unmyelinated and has the slowest conduction velocity?
Explanation
Go with D — C. Within Neuron; Structure and Function, that statement lines up with the standard definition and the usual exam wording you’ll see. In plain terms, C is the option that correctly names the structure, process, or principle asked for in Neuron; Structure and Function. Holding that picture in mind makes C feel natural rather than something you only memorise. Link the term to a real body example (organ, tissue, or ion flow) so the idea stays concrete under exam pressure. A short mental diagram helps — start from stimulus or structure, follow the pathway, and stop at the functional result described by C.