Skeletal Muscle Physiology Flashcards

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1
Q

Muscle Fibers

A

Muscle cells

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2
Q

Sarcolema

A

Muscle cell membrane

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3
Q

Sarcoplasm

A

Cytoplasm

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4
Q

Sarcoplasmic reticulum

A

Modified endoplasmic reticulum

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5
Q

T-tubules

A

Connect the sarcolema to the sarcoplasmic reticulum

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6
Q

Myofibril

A

Contractile components of a muscle cell

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7
Q

Actin

A

Thin filament (attached to z line)

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8
Q

Myosin

A

Thick filament (attached to midline)

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9
Q

Motor unit

A

A motor neuron together with all of the muscle fibers that it innervates

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