MDCAT Biology MCQ #2467

In myelinated neurons, the nerve impulse exhibits a unique jumping behavior that significantly increases its velocity. Where does this 'jump' occur?

MDCAT Biology MCQ #2467

  1. Question 1

    Q1. In myelinated neurons, the nerve impulse exhibits a unique jumping behavior that significantly increases its velocity. Where does this 'jump' occur?

    • A) The entire myelin sheath
    • B) Nodes of Ranvier
    • C) The cell body
    • D) Synaptic vesicles

    Answer: Nodes of Ranvier

    Explanation: Impulse jumps between nodes of Ranvier in saltatory conduction; myelin sheath is tempting but it acts as an insulator, not the jumping site.