LEC Chapter 10 Muscle Terms

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Neuroscience

Last updated 1:28 PM on 10/3/23
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12 Terms

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Tendon

cord of collagen fibers that attaches muscles to bones

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Muscle Fiber

A skeletal muscle cell

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Sarcomere

Contractile unit of muscle

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Perimysium

Connective tissue around a bundle of muscle cells

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Fascicle

Bundle of muscle cells

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Endomysium

Loose connective tissue around a muscle cell

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Sarcolemma

Plasma membrane of a muscle cell

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Myofibril

Long organelle with a striped appearance which fills skeletal muscle cells

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Myofilament

Threadlike structure made mainly of actin or myosin proteins

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Epimysium

Dense irregular connective tissue surrounding a skeletal muscle

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Sarcoplasmic reticulum

A specialized type of endoplasmic reticulum found in muscle cells. It plays a crucial role in muscle contraction by storing and releasing calcium ions.

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Sarcoplasm

Cytoplasm of a muscle cell. It contains various organelles and substances necessary for muscle contraction