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 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 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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