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Study
Muscle Structure
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Identify the number 7 in the picture.
muscle fiber
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Identify the number 8 in the picture.
blood vessel
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What structure wraps the muscle fibers?
fascicle
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Building muscles and increasing the size of muscles is called
hypertrophy
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What are the two types of myofilaments?
myosin and actin
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Identify the number 3 in the picture
perimysium
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Identify the number 5 in the picture.
fascicle
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Identify the number 1 in the picture
tendon
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The ability of muscle to return to its original length.
elasticity
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The ability to receive and respond to stimuli.
excitability
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When a person does not use their muscles, the muscles begin to waste away or decrease. This is called
atrophy
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The ability of a muscle to shorten with force.
contractility
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What is this unit of thick and thin filaments called?
sarcomere
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Ability of a muscle to lengthen.
extensibility
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Identify the letter "A" in this picture. Name it.
Actin
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Identify the letter "B" in this picture. Name it.
Myosin
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Identify the number 2 in the picture.
epimysium
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Identify the number 6 in the picture.
endomysium
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