Question

What initiates muscular contraction?

Answer 1

Any excitable stimuli initiates muscle contraction

Answer 2

$\huge\bf {\underline {\underline \pink{ƛƝƧƜЄƦ}}}$

A Muscle Contraction Is Triggered When an Action Potential Travels Along the Nerves to the Muscles. Muscle contraction begins when the nervous system generates a signal. The signal, an impulse called an action potential, travels through a type of nerve cell called a motor neuron.