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Skeletal Muscle & Muscular System
N/A
55
Anatomy
Undergraduate 2
10/24/2012
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Term
Sarcolemma
 Definition
Plasma Membrane
Term
Sarcoplasm
 Definition
Cytoplasm
Term
Sarcoplasmic Reticulum
 Definition
Smooth ER
Stores Ca2+
Term
Terminal Cisternae
 Definition
Enlarged area around T Tubules
Term
T-Tubules
 Definition
Electrical Impulses travel down
Term
Myofibrils
 Definition
Actin & Myosin
Term
Sarcomere
 Definition
Z line to Z line
Term
Z-Line
 Definition
Boundary of sarcomere
Term
Thick Filaments
 Definition
Myosin
Term
Thin Filaments
 Definition
Actin
Term
A Band
 Definition
(Dark)
Thick and Thin Filaments
Term
I-Band
 Definition
Thin Filaments
Term
Axon Terminals
 Definition
Part of the neuron
Term
Acetylcholine
 Definition
neurotransmitter
Term
Synaptic Cleft
 Definition
Gap between axon terminal and motor end plate
Term
Ach receptors
 Definition
Protein receptors on motor end plate that Ach binds to
Term
Epimysium
 Definition
surrounds muscle
Term
Perimysium
 Definition
surrounds fasicle
Term
endomysium
 Definition
surround muscle fiber
Term
tendon
 Definition
connects bone to muscle
Term
aponeurosis
 Definition
broad sheet tendon
Term
Origin
 Definition
site of muscles attachment to stationary bone
Term
Insertion
 Definition
site of muscle attachment to moving bone
Term
Prime Mover
 Definition
(Agonist)
Contracts
Ex. Bicept
Term
Antagonist
 Definition
Stretches
Tricept
Term
Synergist
 Definition
Muscles that function together to produce movement
Term
Flexion
 Definition
movement up
Term
Extension
 Definition
returning to anatomic position
Term
Abduction
 Definition
moving away from midline
Term
Adduction
 Definition
moving toward midline
Term
Pronation
 Definition
Palms face front
Term
Supination
 Definition
Hands open to front
Term
Dorsiflexion
 Definition
toes to knee
Term
Plantar Flexion
 Definition
Point toes
Term
Eversion
 Definition
Pressure on inner foot
Term
Inversion
 Definition
pressure on outside of foot
Term
Pectoralis
 Definition
Chest
Term
Gluteus
 Definition
Buttock
Term
Brachial
 Definition
Arm
Term
Maximus
 Definition
Large
Term
Minimus
 Definition
Small
Term
Major
 Definition
Larger of two muscles
Term
Minor
 Definition
Smaller of two muscles
Term
Longus
 Definition
Long
Term
Brevis
 Definition
Short
Term
Deltoid
 Definition
Triangular
Term
Quadratus
 Definition
Rectangular
Term
Teres
 Definition
Round
Term
Rectus
 Definition
Straight
Term
Oblique
 Definition
At an angle
Term
Bicep
 Definition
two
Term
Tricep
 Definition
three
Term
Abductor
 Definition
Away from midline
Term
Adductor
 Definition
Towards midline
Term
Masseter
 Definition
A chewer
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