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Muscle Metabolism

Contraction of Skeletal Muscle

Muscle Tissue

Special Characteristics

Excitability, Contractility, extensibility, elasticity

Types of Muscle Tissue

  • Skeletal Muscle: striated, voluntary
  • Cardiac: striated, involuntary
  • Smooth: involuntary, not striated, hollow organs

Smooth Muscle

Skeletal Muscle

Functions

Gross Anatomy

Movement

Maintain posture

Stabilize Joints

Generate heat

Protect visceral organs

Contraction

Physiology of Skeletal Muscle Fibers

Microscopic Structure

Types of Smooth Muscle

Action Potential

Generation of an action potential along the sarcolemma

End Plate Potential

Acetlycholine is released at nerve ending, binds to ACh receptors on the sarcolemma

Microscopic Anatomy

Developmental Aspects

Develops from Mesenchyme

Sliding Filament Model

Cross Bridges

Thick and Thin Filaments

Pathology

Diseases

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