Muscular System in Humans by examville

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MUSCULAR SYSTEM
MUSCULAR SYSTEM

 Functions:
     1. Movement of body parts
     2. Provide form and shape
     3. Heat production
MUSCULAR SYSTEM

 General Classification
    Skeletal Muscle - striated, voluntary
    Cardiac Muscle - striated, involuntary
    Smooth Muscle - non-striated, involuntary
SKELETAL MUSCLES
SKELETAL MUSCLES
 General Characteristics:
  I. Attachments
       Origin   Insertion

  II. Structure
         Belly
         Tendon or Aponeurosis
   SKELETAL MUSCLES

 Criteria for Nomenclature
  1. Attachment
     ex) Sternocleidomastoid
         Temporalis
  2. Function
         extensor or flexor
         abductor or adductor
SKELETAL MUSCLES
 Criteria for Nomenclature
  3. Length
          longus or brevis
  4. Relative Position
          lateral or medial
           superior or inferior
           internal or external
SKELETAL MUSCLES
 Criteria for Nomenclature
  5. Size
      maximus or minimus
      major or minor
SKELETAL MUSCLES
 Criteria for Nomenclature
  6. Orientation of Fibers
       rectus, oblique, or transverse
       parallel or fusiform
       convergent
       pennate (uni, bi, or multipennate)
       circular
     SKELETAL MUSCLES
 Muscle Groupings
    Prime Movers/Agonists
    Antagonists
    Synergists
    Fixators

    Shunt Muscle – resists dislocation
    Spurt Muscle – rapid & effective
SKELETAL MUSCLES
 Associated Connective Tissues
     1. Endomysium
     2. Perimysium
     3. Epimysium
     3. Fascia – Superficial
                 Deep
SKELETAL MUSCLES
 Innervation
     Muscle Fiber
     Motor Unit = Motor Neuron
                  Muscle Fiber
       Coarse Movements
       Fine Movements
     Muscle Tone
SKELETAL MUSCLES
 Organization
  A. Muscles of the Axial Skeleton
    1. Muscles of Head & Neck
          Facial Expression
          Mastication
          Extraocular Muscles
          Lingual Muscles
          Muscles of the Neck
SKELETAL MUSCLES
 Organization
  A. Muscles of the Axial Skeleton
     2. Muscles of the Torso
          Respiratory Muscles
          Abdominal Wall Muscles
          Muscles of the Back
          Muscles of the 
								
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