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Ch. 6 Muscles
Question | Answer |
---|---|
Contractility | The ability of a muscle to shorten with force |
Muscle cells | Muscle fibers |
Excitability | The capacity of skeletal muscle to respond to a stimulus |
Extensibility | The ability to be stretched |
Epimysium | Connective tissue sheath around skeletal muscle |
Fascia | Connective tissue located outside the epimysium. Surrounds and separates muscles |
Muscle fasciculi | Bundles of muscle fibers that make up the muscles |
Perimysium | Loose connective tissue that surrounds muscle fasciculi |
Endomysium | Connective tissue sheath that surrounds each muscle fiber |
Myofibrils | A threadlike structure that is found in the cytoplasm of the muscle fiber |
actin myofilaments | thin myofilaments |
myosin myofilaments | thick myofilaments |
sarcomere |