Anatomy/ Physiology
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| The ability of skeletal muscles to shorten with force | Contractiliy
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| Capacity of skeletal muscles to respond to a stimulus | Excitability
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| Ability to be stretched | Extensibility
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| Ability to recoil to their original resting length after they have been stretched | Elasticity
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| Connective tissue sheath that surrounds each skeletal muscle | Epimysium
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| Connective tissue located outside the epimysium; surrounds and separates muscles | Fascia
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| Connective tissue sheath that surrounds each fiber | Endomysium
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| Threadlike structure that extends from one end of the fiber to the other | Myofibrils
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| Sigle muscle cells | Fibers
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| Thin myofilaments | Actin myofilaments
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| Thick myofilaments | Myosin myofilaments
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| Highly ordered units joined end to end to form the myofibril | Sarcomere
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| Basic structural and functional unity of the muscle | Sarcomere
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| Nerve cells that carry action potentials to skeletal muscle fibers | Motor neurons
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| Brief reversal back of the charge when a muscle cell is stimulated | Action potential
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| Light area on each side of the Z line; consists of actin | I band
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| Darker central region in each sarcomere that extends the length of the myosin | A band
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| Muscle attached to bones or to skin | Skeletal muscle
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| Muscle found in the heart | Cardiac muscle
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| Muscle that has no striations and is involuntary | Smooth muscle
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| Muscle located mostly in walls of hollow visceral organs (other than the heart) | Smooth
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Created by:
KeikoMorelia
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