Dr Peter G. Noakes. Some additional Resources. Kandel Schwartz and Jessell Principals of Neural Science pp 548-559 Ch 36 Muscles. Gross Structural Aspects of Muscle. Tropomyosin and Toponin Excitation Contraction Coupling of Skeletal Muscle.
Contraction ends actin slides back to original resting position.
The time delay between stimulation and contraction is called the latent period. Repeated stimulation before that fiber can relax leads to increased tension. For a given synaptic input Motor neurons with the smallest cell bodies are activated 1st and large motor neurons activated last. Weak muscle contraction - few motor units activated. Light fast Heavy slow.