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22 Cards in this Set
- Front
- Back
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acetylcholine
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neurotransmitter; released at synapses within the nervous system and at the neuromuscular junction
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actin
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one of the two contractile proteins in muscle cells (thin & light)
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antagonist
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muscle that has an action opposite that of a given movement; substance that opposes the action of another.
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bursitis
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inflammation of the bursa
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fascicle
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small bundle, as of muscle cells or nerve cell fibers
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glycogen
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compound built from glucose molecules that is stored for energy in liver and muscles
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insertion
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muscle attachment connected to a moveable part
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lactic acid
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organic acid that accumulates in muscle cells functioning without oxygen
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motor unit
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group consisting of a single neuron and all the muscle fibers it stimulates
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myalgia
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muscular pain
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myoglobin
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compound that stores oxygen in muscle cells
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myosin
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one of the two contractile proteins in muscle (thick & dark).
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neuromuscular junction
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point at which a nerve fiber contacts a muscle cell
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neurotransmitter
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chemical released from the neuron to stimulate the muscle fiber
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origin
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source; beginning; muscle attachment connected to a non-moving part
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oxygen debt
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amount of oxygen needed to reverse the effects produced in muscles functioning without oxygen
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prime mover
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muscle that performs a given movement; agonist
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spasm
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sudden involuntary muscular contraction
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synapse
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point of communication between cells [Ex:neuromuscular junction.]
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synergist
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a substance or structure that enhances the work of another.
muscle that works with a prime mover to produce a given movement |
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tendon
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cord of fibrous connective tissue that attaches a muscle to a bone
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tonus
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partially contracted state of muscle; also, tone
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