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Chapter 8 - Skeletal System

Sarai Gutierrez

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Across
1.a protein that forms filaments that slide between filaments of the protein myosin, contracting muscle fibers
4.neurons that transmit impulses from the central nervous system to an effector
6.gets its name formthe way sacromeres shorten
7.the structural and functionalunits of myofibril
9.contractile fibers in muscle cells
11.a sheet of fibrous connective tissue that encloses a muscle
12.the amount of oxygen required after physical exercise to convert accumulated lactic acid to glucose
13.a motor neuron and its associated muscle fibers
Down
2.contains high energy phosphate bonds and stores excess energy released form the mitochondria
3.synapse between a motor neuronand a skeletal muscle fiber
4.impulse that travels along the sacrolemma to the transverse tubules
5.a type of neurotransmitteer, which is a biochemical secreted at axon ends of many neurons; transmits nerve messages across synapses
8.a protein that, with actin, forms the filaments that contract muscle fibers
10.the functional connection between the axon of a neuron and the dendrite or cell body of another neuron or membrane of another cell type

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