Transcript Twizzler Lab

SKELETAL MUSCLE analogy LAB
Terms’ Greek Roots
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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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