Muscular System Word Scramble
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Term | Definition |
Epimysium | Exterior collagen layer; separates muscle from surrounding tissue |
Perimysium | Surrounds muscle fiber bundles |
Endomysium | surrounds individual muscle cells (muscle fibers) |
Tendon | a fibrous connective tissue which attaches muscle to bone. |
Muscle Fibers | a muscle cell |
Myoblast | a type of embryonic progenitor cell that differentiates to give rise to muscle cells |
Sacroplasm | the cytoplasm of striated muscle cells |
Transverse Tubules | a cavity formed in the plasma membrane in the skeletal system |
Action Potential | the change in electrical potential associated with the passage of an impulse along the membrane of a muscle cell or nerve cell. |
Myofilaments | are the filaments of myofibrils constructed from proteins |
Thin Filaments | filament that contain actin |
Thick Filaments | filament that contain protein myosin |
Sarcoplasmic Reticulum | is a specialized type of smooth ER that regulates the calcium ion concentration in the cytoplasm of striated muscle cells. |
Triad | is the structure formed by a T tubule with a sarcoplasmic reticulum on each side |
Cisternae | a flattened membrane disk that makes up the Golgi apparatus. |
Sarcomeres | a structural unit of a myofibril in striated muscle |
Myofibrils | any of the elongated contractile threads found in striated muscle cells. |
Striated | muscle tissue in which the contractile fibrils in the cells are aligned in parallel bundles |
Troponin | a globular protein complex involved in muscle contraction |
Tropomysin | a protein involved in muscle contraction |
Active Site | a region on an enzyme that binds to a protein or other substance during a reaction |
Actin | a protein that forms (together with myosin) the contractile filaments of muscle cells, |
Myosin | a fibrous protein that forms (together with actin) the contractile filaments of muscle cells |
Neuromuscular Junction | the site of communication between motor nerve axons and muscle fibres |
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Sparky015
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