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ACTIVITY 1 Learning Skeletal Muscle Microstructure Materials for This Activity Compound light microscope Prepared slide of...

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ACTIVITY 1 Learning Skeletal Muscle Microstructure Materials for This Activity Compound light microscope Prepared slide of sk
ACTIVITY 1 Learning Skeletal Muscle Microstructure Materials for This Activity Compound light microscope Prepared slide of skeletal muscle (teased) Model of muscle cell showing parts of a myofibril View a slide of skeletal muscle, and carefully focus and adjust the light so that you can see the stria- tions, or alternating light and dark areas. The ligh areas are where we mainly have the thin act: proteins. The darker areas are where we mais have the thick myosin proteins. Now view & model of a muscle cell showing the details of a myofibril. Identify the thick and thin myofilaments, Z-lines, and sarcomeres. Sketch a sarcomere in the space provided below, labeling the previously mentioned structures.

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sarcomere thin filament thick filament Mline Z line L band H zone A band

Figure: Thick and thin myofilaments, Z-lines and sarcomere

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