The threshold for firing occurs when the electrical charge within the nerve cell reaches
A) -10 millivolts.
B) -50 millivolts.
C) +100 millivolts.
D) +10 millivolts.

Question

Quizplus · Accepted Answer

The threshold for firing in a nerve cell is typically around -50 millivolts, which is known as the action potential threshold. When the charge inside the cell reaches this level, it triggers an electrical impulse that travels along the nerve cell, leading to communication with other cells in the body. The other answer choices are not accurate descriptions of the firing threshold.

The Threshold for Firing Occurs When the Electrical Charge Within