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Microscopic and functional anatomy of skeletal muscle

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Reference no: EM132560891

Understand microscopic and functional anatomy of skeletal muscle.

__ Describe the shape of a skeletal muscle cell, and explain why it is multinucleated.

__ Define a myofibril.

__ Draw a myofibril, showing all structures and indicating the myofilaments responsible for striations.

__ Define a sarcomere.

__ Draw a sarcomere and label the following functional units: actin, myosin, titin, Z disc, and M line.

__ Explain the sliding filament mechanism of muscle contraction.

__ Explain how myofilaments determine the striation pattern in skeletal and cardiac muscle fibers.

__ Describe the functional feature of elasticity of skeletal muscle and how overextension is prevented.

__ Describe the role of the sarcoplasmic reticulum and T tubules in the skeletal muscle fiber.

__ Describe the innervation of skeletal muscle fibers.

__ Describe the components of a motor unit and its function.

__ Define terminal bouton and synaptic cleft.

__ Distinguish three types of skeletal muscle fibers: slow oxidative fibers, fast glycolytic

fibers, and fast oxidative fibers.

Reference no: EM132560891

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