The magnitude of an action potential (AP) is measured near the axon hillock using an electrode and then measured again 2 mm farther down the axon. Compared to the AP measured near the axon hillock, the AP 2 mm farther down the axon is:
A)larger.
B)smaller.
C)of the same magnitude.
D)completely nullified.

Question

Quizplus · Accepted Answer

Action potentials are all-or-nothing events, meaning they maintain the same magnitude as they propagate along the axon.

The Magnitude of an Action Potential (AP) Is Measured near the Axon