The all-or-none law
A) is the fact that a synapse is either excited or inhibited.
B) is the fact that an action potential either happens or it doesn't.
C) applies only to sensory neurons.
D) applies only to motor neurons.
E) is the fact that neurons are either sensory or motor.

Question

Quizplus · Accepted Answer

The all-or-none law refers to the principle that an action potential in a neuron either occurs fully or not at all once its threshold is reached, regardless of the strength of the stimulus (as long as it is above threshold). This principle does not apply selectively to sensory or motor neurons, nor does it describe the nature of synapses or categorize neurons strictly as sensory or motor.

The All-Or-None Law