Term
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Definition
| Attach to body's skeleton, cylindrical, multi-nucleate, largest muscle type, striated, voluntary |
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Definition
| Connective tissue sheath surrounding skeletal, smooth, and cardiac muscles |
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Definition
| Fibrous membrane that encloses sheathed skeletal muscle fibers-forms Fascicle |
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Definition
| Encloses entire skeletal muscle |
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Definition
| Structures that attach skeletal muscles to bones, provide durability and conserve space |
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Definition
| Found in walls of hollow body organs, no striations, involuntary, spindle-shaped, single nucleus |
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Definition
| Found in heart, striated, involuntary, arranged in figure 8, joined by intercalated discs |
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Term
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Definition
| Plasma membrane of skeletal muscle cells |
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Term
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Definition
| I bands are light, A bands are dark |
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Term
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Definition
| Chains of contractile units that form myofibrils |
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Term
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Definition
| Form sarcomeres and produce striations in skeletal muscles |
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Term
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Definition
Thick-Myosin, cross bridges
Thin-Actin, anchored by Z disc, not in H zone |
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Term
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Definition
| Smooth ER; releases calcium, which allows muscle to contract. |
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Term
| Extensibility vs. Elasticity |
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Definition
Ex-Ability to be stretched
El-Ability to resume resting length after being stretched |
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Term
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Definition
| The motor neuron and the skeletal muscle cells it stimulates |
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Term
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Definition
| The junction between the axon terminal and the sarcolemma, where acetylcholine released |
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Term
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Definition
| Full muscle contraction, (Tetanic contraction) |
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Term
| Unfused/Incomplete Tetanus |
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Definition
| When muscle contractions are not smooth/sustained |
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Term
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Definition
| Muscle shortens to provide movement |
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Term
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Definition
| Tension in muscle keeps increasing, but shortening does not occur (contracting without progress) |
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Term
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Definition
| The state of continuous partial contractions that helps maintain muscle health |
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Term
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Definition
Origin-attached to immovable bone
Insertion-attached to movable bone, moves toward origin when contracts |
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