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Anatomy-Muscles
Muscles
Term | Definition |
---|---|
Contractility | The ability of skeletal muscle to shorten with force? |
Excitsbility | The capacity of skeletal muscle to respond to a stimulus? |
Extensibility | The ability to be stretched |
Elasticity | The ability to recoil their original resting length after they have been stretched? |
Epimysium | The the connective tissue sheath covering that surrounds skeletal muscle |
Fascia | Connective tissue located outside of the epimysium |
Muscle Fasciculi (Fascicle) | A muscle is composed of numerous visible bundles called |
Perumysium | Fasciculi (Fascicle) are surrounded by loose connective tissue called |
Fibers | The fascuculi are composed of single muscles cells called |
Ebdomysium | Each fiber is surrounded by a connective tissue seath called |
Myofibrils | The cytoplasm of each fiber is filled with |
Myofibrils | A thread like structure that extends from one end of the fiber to the other |
Actin and Myosin Myofilaments | What are the two major kinds of protein fibers that are in Myofibrils |
Actin | This resembles 2 minute strands of pearls twisted together |
Myosin | This resembles bundles of minute golf clubs |
Sacromeres | Actin and myosin myofilaments form highly ordered units called |