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Transcript 
MUSCLES AND
MUSCLE TISSUES
Chapter 9
Functions of Muscle
Tissue

Movement

Heat production

Maintenance of posture

Stabilize joints
Functional Characteristics

Excitability

Contractibility

Extensibility

Elasticity
Types of Muscle Tissue
Types of Muscle Tissue
Types of Muscle Tissue
Types of Muscle Tissue
Gross Anatomy of
Skeletal Muscle
Gross Anatomy of
Skeletal Muscle
Gross Anatomy of
Skeletal Muscle
Gross Anatomy of
Skeletal Muscle

Highly vascularized

Highly innervated
Muscle Attachments

Insertion versus origin

Direct attachment

Indirect attachment (tendons and
aponeurosis)
Microscopic Anatomy
Microscopic Anatomy
Microscopic Anatomy
Neuromuscular Junction
Generating an
Action Potential
Generating an
Action Potential
Sliding Filament Model
Sliding Filament Model
Sliding Filament Model
Sliding Filament Model
Motor Units
Typical Myogram
Frequency of Stimulation
Treppe
Muscle Tone
Muscle Metabolism
Muscle Fatigue
THE MUSCULAR SYSTEM
CHAPTER 10
Interactions of
Skeletal Muscle

Agonist=prime mover

Antagonist=opposes the agonist

Synergist=helpers

Fixators=immobilizers
Naming Skeletal Muscles







Location
Shape
Relative size
Direction
Number of origins
Location of attachments
Action
Fascicle Arrangement
Muscle Mechanics
Lever Systems
What is a Lever?
A lever is a rigid bar that moves on a
fixed point, or fulcrum, when a force is
applied to it. The applied force, or effort,
is used to move a resistance, or load.
Mechanical Advantage
Mechanical Disadvantage
Three Classes of Levers
Three Classes of Levers
Three Classes of Levers
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