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15 Cards in this Set
- Front
- Back
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Isotonic contractions |
Muscles generate force and causes muscle length to change. |
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Concentric contractions |
Muscles shorten in length while generating force. |
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Eccentric contractions |
Muscles lengthen and elongate while generating force. |
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Isometric contractions |
Muscles are generating force while their length remains the same and movement does not occur. |
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Origin |
The tendinous attachment on bone that is more stable and less movable during contraction. |
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Insertion |
The tendinous attachment on the bone and is more movable during contraction. |
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Prime movers |
Muscles that cause specific or desired movements. |
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Synergists |
Muscles that facilitate prime movers by performing the same movements at the same time. |
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Fixators |
Specialized symergists that stabilize joints or help maintain posture so prime movers can exert their action. |
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Antagonists |
Muscles that relax and lengthen while prime movers and their synergists contract to produce movements. |
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Acetylcholine |
The principal neurotransmitter involved in muscle contraction. |
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Epimysium |
Connective tissue covering surrounding the entire muscle. |
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Perimysium |
Connective tissue covering surrounding the fasciculi. |
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Endomysium |
Connective tissue covering surrounding each individual muscle fiber. |
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Fasciculi |
Bundles of muscle fibers. |
