SKELETAL MUSCLE analogy LAB

Terms’ Greek Roots epi = upon peri = around endo = within or inner mys = muscle sarco = flesh lemma = husk fasci = bundle

Twizzler analogy 1 1 Twizzler strand = myofibril

Twizzler analogy 2 1 bundle of twizzlers = fascicle

Twizzler analogy 3 1 package of Twizzlers = Muscle belly The packaging = tendon

Büech’s Twizzler Analogy LAB w/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 epimysium surrounding 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

Prime mover- the muscle that provides most of the movement

Synergist- muscle that assists the prime mover

Antagonist- the muscle that opposes the action of the prime mover

Anterior shoulder and arm

Anterior forearm

Anterior thigh

Lateral thigh

Posterior thigh

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