Term
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Definition
| motion, maintenance of posture, heat production |
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Term
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Definition
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Term
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Definition
| 10x longer than average cell, cylindrical, multinucleated, striated |
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Term
| skeletal muscle contractiosn |
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Definition
| slow to fast, forceful and weak, not rhythmic, voluntary |
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Term
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Definition
| Fascia, tendons, aponeurosis |
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Term
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Definition
| broad sheet of fibrous connective tissue |
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Term
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Definition
just beneath skin
composed of adipose and loose connective
stores fat, h20, insulates, protection, and pathway for blood vessels and nerves |
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Term
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Definition
lines the body wall and surrounds groups of musces
allows for free movement
pathway for nerves and blood vessels
sometimes is origin for muscles |
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Term
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Definition
cords of fibrous connective
attaches muscle to bone
permits mobility without bulk |
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Term
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Definition
| similar to tendon but connects bone to bone |
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Term
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Definition
broad flat sheet of dense connective
two or more muscles together or to a bone |
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Term
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Definition
muscle cell
long cylindrical surrounded by sheath of connective |
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Term
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Definition
surrounds single myofiber (muscle cell)
has capillaries, nerves
nourishes cell |
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Term
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Definition
surrounds fascicles (bundles of myofibers)
larger blood vessels and nerves |
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Term
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Definition
surrounds several fascicles
separates muscles |
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Term
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Definition
10x as large as normal
multiple nuclei
myoblobin |
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Term
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Definition
makes muscles pink
stores oxygen |
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Term
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Definition
rod like super organelles, parallel to central axis
contractile elements
composed of sarcomeres |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| light stripe in middle of "A" Bands |
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Term
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Definition
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Term
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Definition
functional unit of muscle fiber
unit between two Z Disks |
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Term
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Definition
structures inside sarcomere
thick and thin filaments |
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Term
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Definition
made of myosin
rod like tail and two globular heads (cross bridge) |
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Term
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Definition
crosses teh I band and extend to A band
made of
actin, troponin, and tropomyosin
anchored by Z line |
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Term
| Sarcoplasmic reticulum (SR) |
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Definition
| smooth ER that regulates calcium levels |
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Term
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Definition
fold of the cell membrane that penetrates the cell
at right angle to myofilaments
synchronizes muscle contractions |
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