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Chapter 6 Muscles
Question | Answer |
---|---|
Shorten muscle with force | contractility |
Capacity of skeletal muscle to respond to stimulus | Excitability |
ability to be stretched | Extensibility |
ability to return to original length after being stretched | Elasticity |
surrounds the skeletal muscle | Epimysium |
surrounds and separates muscles; located outside the epimysium | fascia |
surrounds fasciculi | perimysium |
makes up fasciculi; single muscle cells | fibers |
each fiber surrounded by connective tissue sheath; what is the sheath | endomysium |
thread-like structure that extends from one end of a fiber to the other | myofibrils |
thin myofilaments | actin |
thick myofilaments | myosin |
highly ordered units formed by actin and myosin myofilaments | sarcomeres |