ch 13 vocab. Word Scramble
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Question | Answer |
neurotransmitter that initiates a muscle contraction | acetylcholine |
shortening of the length of all the muscle fibers and out of the muscle itself. it is the opposite of relaxation | contraction |
a bundle composed of many muscle fibers. it is surrounded by fascia. many fascicles grouped together from a muscle | fascicle |
an increase in the size of a muscle | hypertrophy |
one muscle cell. so named because it stretches over a long distance | muscle fiber |
section of a muscle fiber that contains thin strands (actin) and thick strands (myosin) that give it its characteristic striated appearance under a microscope | myofibril |
area on a single muscle fiber where a nerve cell connects to it | neuromuscular junction |
chemical messenger between a nerve cell and a muscle fiber | neurotransmitter |
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ricrom81
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