BIOL 259 QUIZ 2(1).docx - BIOL 259 QUIZ 2 10 points NAME...

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BIOL 259 QUIZ 2 10 points NAME: Colleen Rivas Directions: Log in to APR Click the "MUSCULAR" module Click the "ANIMATIONS" symbol Please watch the "SKELETAL MUSCLE" animation to answer the following questions. 1. Bundles of muscle fibers are called fasciculus . 2. Skeletal muscle contractions occur when sarcomeres shorten . Please watch the "NEUROMUSCULAR JUNCTION" animation to answer the following questions. 3. The neuromuscular junction is where the nervous system communicates with the muscular system. 4. Name the TWO chemical ions that are essential for this communication to occur? calcium and sodium
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Please watch the "SLIDING FILAMENT" animation to answer the following questions. 5. When a sarcomere shortens, the actin myofilaments slide toward the center of each myosin
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