What is a threshold stimulus?
A) Minimum strength of stimulus required to cause muscle fiber contraction to occur
B) Maximal amount of force a muscle can exert
C) Amount of oxygen needed for repeated contractions
D) Minimal amount of force a muscle can exert
E) Maximal amount of stimulation a muscle can withstand

Question

Quizplus · Accepted Answer

A threshold stimulus is the minimum strength of stimulus required to cause a muscle fiber to contract. It represents the point at which a stimulus is strong enough to generate an action potential in a neuron and subsequently cause muscle contraction.

What Is a Threshold Stimulus