Fig. 8.6a Motor units. (Source of images and 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/

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Sources of images and videos. Used with permission.

https://commons.wikimedia.org/wiki/File:Motor_unit.png

Description English: Motor Unit. The motor unit is the motor neuron and all of the muscle fibers it innervates. Note that a muscle fiber is innervated by only one motor neuron, but a motor neuron will innervate many muscle fibers.

Date 16 September 2019

Source Own work

Author Daniel Walsh and Alan Sved

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I, the copyright holder of this work, hereby publish it under the following license:

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You are free:

· to share – to copy, distribute and transmit the work

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share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

Modified: A.G. DiGiovanna

Added components, labels, and lines,

https://commons.wikimedia.org/wiki/File:Motor_unit_recruitment.png

Description English: Motor unit recruitment

Date 19 September 2019

Source Own work

Author Daniel Walsh and Alan Sved

Licensing

I, the copyright holder of this work, hereby publish it under the following license:

This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.

You are free:

· to share – to copy, distribute and transmit the work

· to remix – to adapt the work

Under the following conditions:

· attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.

share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

Modified: A.G. DiGiovanna

Added components, labels, and lines,