Muscle Fiber Contraction and Relaxation

Learning Objectives Describe the components involved in a muscle contraction Explain how muscles contract and relax Describe the sliding filament model of muscle contraction The sequence of events that result in the contraction of an individual muscle fiber begins with a signal—the neurotransmitter, ACh—from the motor neuron innervating that fiber. The local membrane of the … Continue reading Muscle Fiber Contraction and Relaxation