Muscle Tissue: In a Nutshell (Nursing)

by Jasmine Clark

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    00:01 So to conclude our lecture on the muscular system, recall that the muscular system is made up of three different types of muscles.

    00:09 We have skeletal muscles, cardiac muscles, and smooth muscles.

    00:14 Skeletal muscle cells are referred to as skeletal muscle fibers and are multinucleated and striated.

    00:23 The major functional properties of our skeletal muscle fibers include their electrical excitability, their contractility, their extensibility, and their elasticity.

    00:37 The contractility of our muscle fibers involves the sliding of microfilaments in the skeletal muscle fiber.

    00:46 Contraction is coupled with electrical excitation of the skeletal muscle fiber.

    00:54 Impulses come from the nervous system to the muscular system at the neuromascular junction.

    01:03 Cardiac muscles differ from skeletal muscles as they are involuntary muscles.

    01:09 While there are some similarities, cardiac muscles also exhibit differences in their structure and their function.

    01:17 Finally, smooth muscles are also going to differ from our skeletal muscles.

    01:23 While they are also involuntary like our cardiac muscles, they use different regulatory proteins during the process of a contraction compared to skeletal muscles.

    01:36 This concludes our lecture on the muscular system.

    01:40 Thank you for listening.

    About the Lecture

    The lecture Muscle Tissue: In a Nutshell (Nursing) by Jasmine Clark is from the course Musculoskeletal System – Physiology (Nursing).

    Included Quiz Questions

    1. Electrical excitability
    2. Contractility
    3. Extensibility
    4. Elasticity
    5. Rigidity

    Author of lecture Muscle Tissue: In a Nutshell (Nursing)

     Jasmine Clark

    Jasmine Clark

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