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Definition
| Stimulated by a threshold stimulus, a muscle fiber will contract completely, |
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| muscle whoe actions oppose the action of a prime mover in any given movement |
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| Membrane tissue connecting muscle. Sheetlike tendon. |
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| Small synovial-lines sacs containing a small amount of synovial fluid: located between some tendons and underlying bones |
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| Muscle whos contraction is mainly repsonsible for producing a given movement |
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| basic functional contarctile unit |
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| Skeletal, Cardiac, Smooth |
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| Crosswise stripes or striations, Contracts |
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| Fibers branch frequently, intercalated disks, Fibers allow heart to contract efficiently |
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Definition
| Allows the heart to contract in concert |
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| nonstriated muscle, or involuntary muscle or smooth or visceral muscle |
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| Composition of skeletal muscle |
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Definition
| mainly straited muscle fibers and connective tissue. Extend from bone to bone. |
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Definition
| Orign, insertion, and body |
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| attachment to the bone that remains relatively staionary |
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| Point of attachment to the bone that moves when a muscle contracts |
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| Microscopic structure of skeletal |
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Definition
| Cells called fibers Fibers contain thick myofilaments (myocin protein) and thin Myofilaments (actin). Sacomere requires calcium and ATP |
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Definition
| movement occurs at the joint between the origin and the insertion |
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Term
| Groups of Skeletal movement |
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Definition
| Prime mover, synergist, antagonist |
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Term
| Posture of skeletal muscle |
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Definition
| special type of muscle contraction: tonic contraction |
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Term
| Heat producation of Skeletal muscle |
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Definition
| Body depends on heat for survival |
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Definition
| Reduces strength, caused by repeated stimulation, depletes stored ATP. |
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Definition
| metabolic effort required to burn excess lactic accid that may accumulate during prolonged periods of excersice. |
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Definition
| stimulatn of muscle by a nerve impulse |
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Definition
| specialized nerve that transmits an impulse to a muscle |
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| specialized point of contract between nerve ending and muscle fibers |
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Definition
| release of calcium, calcium binds with trapanian causing transformation, myosin heads binds w actin, power stroke ADP and P disisociated from myosin, ATP binds myosin head, filament returns to relaxed state |
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Definition
| most muscle move by pulling on bones across movable joints |
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Definition
| muscle contracts when stimulus hits certain levels |
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Definition
| Contraction in the absence of adequate oxygen produces lactic acid, which contributes to muscle soreness |
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Term
| types of muscle contractions |
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Definition
| twitch and tetanic contractions |
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Term
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Definition
| laboratory phenomena and do not play significant role. Single contraction |
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Definition
| contractions are sustained and steady muscular contractions caused by a series of stimule |
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Definition
| contraction of a muscle that produces movement at a joint because muscle chenages length. |
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Definition
| muscle shortens insertion end |
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Definition
| muscle lengthens under tension |
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Definition
| contractions that do not produce movement, tension with in the muscle increases even with no movement |
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Definition
| regular and properly practiced |
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Definition
| Orbiculars oculi, Orbiculars oris, Zygomaticus |
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| elevate shoulders and extends head |
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| Rectus abdominis, External oblique, Internal oblique, Transersus, abdominis |
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| Intercostal muscles, Diaphragm |
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| movement that decreases the angle between two bones at their joint: bending |
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| Movement that increase the angle between two bones at their joint: straightening |
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| movement of a part away from the body |
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| movement of a part toward the body |
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| movement around a longitudinal axis |
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| Dorsiflexion and plantar flexion |
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| Foot movement top and bottom |
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| Foot movement at the ankle |
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