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SKELETAL MUSCLE analogy LAB. Terms’ Greek Roots. epi = upon peri = around endo = within or inner mys = muscle sarco = flesh lemma = husk fasci = bundle. 1 Twizzler strand = myofibril. Twizzler analogy 1 . 1 bundle of twizzlers = fascicle. Twizzler analogy 2 .
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Terms’ Greek Roots • epi = upon • peri = around • endo = within or inner • mys = muscle • sarco = flesh • lemma = husk • fasci = bundle
1 Twizzler strand = myofibril Twizzleranalogy 1
1 bundle of twizzlers = fascicle Twizzleranalogy 2
1 package of Twizzlers = Muscle belly The packaging = tendon Twizzler analogy 3
Büech’sTwizzlerAnalogy LABw/Plastic Wrap • Each strip of the Twizzler represents a myofibril (muscle fiber) • Wrapped in Plastic Wrap endomysium • Several myofibrils wrapped together in Plastic Wrap form perimysium representing a fascicle • Several fascicles are wrapped in Press & Seal wrap to represent the epimysiumsurrounding the muscle belly • Extra Press & Seal at the ends represents the tendon that attaches muscle to bone
Origin- The location where the muscle is attached to the relatively immovable end of the bone
Insertion- end of the muscle that is attached to the movable bone
Antagonist- the muscle that opposes the action of the prime mover