Unit 7 Shld Girdle

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Author:
pjrichardson23
ID:
37842
Filename:
Unit 7 Shld Girdle
Updated:
2010-09-27 22:38:35
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pt603
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Description:
Shoulder Girdle osteology
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  1. What section of the sternum is associated with the shoulder girdle?
    Manubrium
  2. The inferior surface of the lateral 1/3 of the clavicle possesses a distinct tuberosity. It consists of a bump and a lateral roughening. What are these two things called and what attaches to them?
    bump = conoid tubercle - attachment site for the conoid ligament (portion of the coracoclavicular ligament)

    lateral roughening = trapezoid line - attachment site for the trapezoid ligament (portion of the coracoclavicular ligament)
  3. The spine of the scapula has rather sharp margins in which superficial back musculature attach to is called what?
    cranial lip and caudal lip
  4. What is the shallow depression on the dorsal surface of the scapulae superior to the spine? and what does it serve for as an attachment?
    • Suprascapular fossa (or supraspinatus fossa)
    • Supraspinatus Muscle
  5. What is the larger yet shallow depression on the dorsal scapula inferior to the spine? and serves as an attachment for what?
    • Infrascapular fossa (or infraspinatus fossa)
    • Infraspinatus Muscle
  6. The anterior lateral projection of the spine of the scapula arching over the glenoid fossa? What does it articulate with?
    • Acromion Process
    • articulates with the acromial end of the clavicle
  7. Another name for the Greater Scapular Notch
    Spinoglenoid notch
  8. Region between the lateral angle of the scapula and the attachment of the spine to the dorsal surface.
    What two things go through this region?
    Greater scapular notch (spinoglenoid notch)

    Suprascapular nerve and suprascapular artery
  9. This surface on the scapula and its related muscle move freely over the underlying thoracic wall
    • Subscapular fossa
    • Subscapularis
  10. A hook-like structure that projects anterolaterally and is positioned directly inferior to the lateral part of the clavicle
    Coracoid Process
  11. The coracoid process serves as an attachment site for 3 muscles and 3 ligaments. What are they?
    • Muscles: Short head of the Bicep Brachii, Coracobrachialis, Pectoralis Minor
    • Ligaments: Coracoclavicular, Coracoacromial, Coracohumeral
  12. What is the shallow comma-shaped cavity that articulates with the head of the humerus? What joint does this form?
    • Glenoid Fossa
    • Glenohumeral Joint
  13. What is the small roughening located superior to the glenoid cavity? What is this attachment site for?
    • Supraglenoid Tubercle
    • Long head of the Bicep Brachii
  14. What is the large triangular-shaped roughening inferior to the glenoid cavity? What is this attachment site for?
    • Infraglenoid Tubercle
    • Long head of the Triceps Brachii
  15. What is the small shallow area on the lateral border of the scapula that allows for a passage of an artery? What artery is this that goes through it?
    Groove for the scapular circumflex artery
  16. What is the small but distinct notch on the scapula that lies immediately medial to the room of the coracoid process? What goes through the notch?
    • Suprascapular Notch
    • Suprascapular Nerve
  17. The part of the humerus that projects medially and somewhat superiorly.
    What does it articulate with?
    head of the humerus

    glenoid fossa
  18. On the head of the humerus...
    What is the angle of inclination?
    What is the angle of torsion?
    • Inclination = 130-150 degrees from shaft (frontal plane)
    • Torsion = 30 degrees posterior torsion, retrotorsion (transverse plane)
  19. On the humerus, the very short, narrow constriction immediately distal to the head
    Anatomical Neck
  20. On the humerus, what is the large landmark positioned laterally with 3 facets attached to it? What are the 3 facets called? And what attaches to each of them?
    • Greater Tuberacle
    • Superior Facet = Supraspinatus
    • Middle Facet = Infraspinatus
    • Inferior Facet = Teres Minor
  21. On the humerus, what is the large landmark position anteriorly? And what attaches here?
    • Lesser Tubercle
    • Subscapularis
  22. On the humerus, what is the deep sulcus separating the lesser and greater tubercles? What 3 parts does it have? And what attaches to each part?
    • Intertubercular Groove (aka Bicipital Groove)
    • Lateral Lip: Pectoralis Major
    • Medial Lip: Teres Major
    • Floor: Latissimus Dorsi
  23. On the humerus, what is the large V-shaped roughening on the lateral surface of the humerus midway along its length? What attaches here?
    • Deltoid Tuberosity
    • Distal attachement for the Deltoid
  24. On the humerus, this region is oriented in the horizontal plane between the expanded proximal part of the humerus and the narrower shaft?
    Surgical Neck

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