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Movement
Heat
Protection
Circulation
Breathing
Digestion |
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| connective tissue that surrounds and protects muscle tissue |
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| immediately deep to the skin |
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| dense irregular connective tissue that lines body wall and limbs and holds muscle groups together |
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| outermost layer, encircling the whole muscle |
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| surrounds bundles of 10-100 muscle fibers |
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| surrounds each individual fiber |
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| Fascia that extends from muscle to connect it to the bone |
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| motor neuron and muscle cells it controls |
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| Process of Homeostatis(Body Temp.) |
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| mitochandria convert sugar to ATP and release heat with every contraction |
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| a place where neurons and muscles communicate with one another |
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| a small gap the exists between the neuron and the muscle fiber at the synapses |
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| a chemical that allows nerves and muscles to communicate across the gap |
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| a synapse between a motor neuron and a skeletal muscle |
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| extends from the spinal cord to a group of skeletal muscle fibers; threadlike |
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| close to its target skeletal muscle fibers, the axon branches into several... |
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| sacs at the end of the axon terminals that contain neurotransmitters |
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| neurotransmitter used for muscle contraction |
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| separate one sarcomere from the next |
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| dark area made of thick filament myasin |
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| light area contains the thin filament actin |
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| center of each A-band; contains thick filament only |
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| 4 Characteristics of Muscles |
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Irritability
Contractability
Extensibility
Elasticity |
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| responding to outside stimuli results in contraction |
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| the ability of muscle fibers to shorten length when stimulated |
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| most muscles are arranged in antagonistic pairs; when one muscle contracts, another must... |
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| returning to their original length when relaxing |
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| the muscle cell cytoplasm |
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| on striated muscles, the bands, or small bundles, of protein; the contractible elements of skeletal muscle; (toothpicks) |
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| protein fibers that make up myofibrils |
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| Purpose of Superficial Fascia |
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-stores water and fat
-reduces heat loss
-provides protection |
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| bundles of muscle fibers surrounded by perimysium |
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