Which of these statements applies to EPP
A)It occurs because of Na⁺ movement inward at the motor end-plate region.
B)It is usually smaller in magnitude than an IPSP.
C)It is terminated when Ca²⁺ inactivates acetylcholine.
D)It is a graded potential similar to IPSP.

Question

Quizplus · Accepted Answer

EPP (end-plate potential) occurs due to the influx of Na⁺ ions at the motor end-plate region. The other statements are incorrect. EPP is typically larger in magnitude than an IPSP, is terminated when acetylcholinesterase breaks down acetylcholine, and is not a graded potential like IPSP.

Which of These Statements Applies to EPP