Muscle Insertion Origin

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  1. Sternocleidomastoid /
    Sternomastoid
    Passes obliquely down the neck

    • O: Sternum and clavicle
    • I: Mastoid process
  2. Pectoralis Minor
    Located behind pectoralis major

    • O: 3rd to 5th rib
    • I: corAcoid process of scapula
  3. Deltoid
    Covers the shoulder joint

    • O: Clavicle, Acromion, Scapular Spine
    • I: Deltoid tuberosity of humerus
  4. Biceps Brachii
    Anterior side of humerus

    • O: Glenoid cavity, corAcoid process of scapula
    • I: Radial Tuberosity of radius
  5. Brachialis
    Anterior lower humerus

    • O: Tuberosity of humerus
    • I: CorOcoid process of ulna
  6. Triceps
    Posterior surface of humerus

    • O: Glenoid cavity, distal humerus
    • I: Olecranon
  7. Trapezius
    Muscle on posterior surface of neck and thorax

    • O: Occipital, C7, Thoracic Vertebrae
    • I: Acromion, Scapular Spine
  8. Latisimus Dorsi
    Lateral aspect of back

    • O: Spinous Process, Ribs
    • I: Bicipital Groove
  9. Sacrospinalis
    Occipital to sacrum on both sides of spinous process

    • O: 
    • I:
  10. Psoas Minor
    Located in front of Psoas Major

    • O: 
    • I:
  11. Gluteus Maximus
    Basically your butt

    Made up of:

    • Maximus
    • Medius
    • Minimus
  12. Psoas Major?
    Thick muscle posterior abdomen which acts as a filter by absorbing some x-rays.
  13. Pectoralis Major
    Thick, fan-shaped muscle on upper anterior portion of chest.  Acts as a filter by absorbing some x-rays.
  14. Intercostal Muscles
    Between adjacent ribs, allows chest to expand during inspiration.
  15. Diaphragm
    Dome-shaped muscle that separates the thorax from the abdomen.  Has 3 holes in it:

    • Aortic Hiatus
    • Esophageal Hiatus
    • Opening for IVC

    Hernias can happen at each of these openings.
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320218
Card Set
Muscle Insertion Origin
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Muscle Insertion Origin
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