Fig. 8.5 Myofilaments and the process of contraction. (Sources of videos below. Used with permission.)

Videos

“Muscle Tissue”

https://blausen.com/en/video/muscle-tissue/

“Organization of Skeletal Muscle”

https://blausen.com/en/video/organization-of-skeletal-muscle/

“Overview of a Sarcomere”

https://blausen.com/en/video/overview-of-a-sarcomere/

“Neuromuscular Junction”

https://blausen.com/en/video/neuromuscular-junction/

“The Contraction Cycle”

https://blausen.com/en/video/the-contraction-cycle/

NOTE: The filaments do not slide back into position on their own. An external force (e.g., another muscle, elastic body parts, gravity) must pull the muscle back into position.

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Sources of videos. Used with permission.