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14 Cards in this Set
- Front
- Back
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cell structure of muscle tissue from smallest to largest
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myofibril<myofiber<fasicle<multiple fasciles<gross muscle (bicep)
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endomyosin wraps around what?
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bundle of muscle fibers
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perimyosin is in between what?
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inbetween different groups/bundles of muscle fibers that are wrapped up by endomyosin
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epimyosin wraps around what?
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wraps around peri and endomyosin and muscle fibers
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Z disc to Z disc= what?
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a sarcomere
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M line is where in the sarcomere?
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the middle! M for middle.
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how to remember H zone, M line, A band?
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M, H, A. My Hot Ass. Small-large
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A band vs. I band
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A band=thick filaments (A is thicker letter)
I band=thin filaments (I is thin letter) |
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what shortens during contraction?
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the H zone
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during contraction, what band/zone disappears
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I band disappears
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how to remember parts of the sarcomere
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from the middle: MHAIZI
"AI Band" Artificial Intelligence Band "A" is thicker than "I" |
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what makes up a triad?
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one T-tubule and 2 terminal cisternaue of sarcoplasmic reticulum
in skeletal muscle, located at the junc of the A and I band=2 triads per each sarcomere |
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myosin vs. actin. which is thick and which is thin?
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ac-"thin" vs. MY-you have thick filaments-osin
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how does calcium get inside the smooth muscle cell?
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caveolae form from surface lipid rafts-invagination/endocytosis brings in Calcium. spread via gap junctions
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