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Unformatted text preview: Explain how a muscle cell contracts. Explain how motor units control muscle contraction. Explain how a motor neuron makes a muscle fiber contract. Describe the role of calcium in a muscle contraction. Explain what causes muscles to fatigue. Distinguish between aerobic and anaerobic exercise. Note the advantages of each. Describe an example of an animal using its sensory receptors, central nervous system, skeleton, and muscles to perform an activity. Key Terms anaerobic exercise appendicular skeleton axial skeleton ball-and-socket joints endoskeleton exoskeleton hinge joint hydrostatic skeleton ligaments motor units myofibril neuromuscular junctions osteoporosis pivot joint red bone marrow sarcomeres skeletal muscle sliding-filament model tendons thick filament thin filament yellow bone marrow...
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This note was uploaded on 04/05/2012 for the course BIOL 101 taught by Professor Lexicon during the Spring '11 term at Ohlone.
- Spring '11