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upper limb anatomy

Overview. Clinical (exam!) relevance of:Osteology, joints ligamentsArterial supplyVenous DrainageMuscle CompartmentsInnervationCase/worked example. Osteology, Joints

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upper limb anatomy

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    1. Upper Limb Anatomy David Eagle

    3. Osteology, Joints & Ligaments Pectoral Girdle: Transfers weight from upper limb to axial skeleton Fall on outstretched arm ? Fractured clavicle 1/3 along from lateral end Point of least muscle attachment + where bone is thinnest

    4. Osteology, Joints & Ligaments Shoulder Joint: Adaptations for wide range of movement: Shallow Glenoid Fossa Shallow Glenoid Labrum Only 1/3 of the head of Humerus in contact at any time Lax joint capsule Implications: Less stability ? more likely to dislocate ? Coracoacromial arch superiorly and muscle attachments mean Humeral head can only shift inferiorly and anteriorly ? loss of Axillary N. prone to adhesive capsulitis

    5. Osteology, Joints & Ligaments Humerus: Anatomical neck: Surgical neck: Spiral groove: Medical epicondyle: Elbow: Hinge: Pronation/supination:

    6. Osteology, Joints & Ligaments Hand: Proximal row: Scaphoid, Lunate, Triquetral, Pisiform Distal row: Trapezium, Trapezoid, Capitate, Hamate (Stop letting those people, touch the cadaver’s hand) Metacarpals, MCP, proximal phalanges, PIP, intermediate phalanges (except the thumb), DIP, distal phalanges Wrist Joint: Scaphoid + Lunate articulate with the Radius only Fall on outstretched arm ? fractured Scaphoid ? snuff box ? avascular necrosis

    7. Arterial Supply

    8. Venous Drainage

    9. Muscles - Arm

    10. Muscles – Posterior Forearm

    11. Muscles – Anterior Forearm

    12. Muscles – Hand

    13. Innervation

    14. Innervation – Median N.

    15. Innervation – Ulnar N.

    16. Innervation – Radial N.

    18. A Waiter Called ‘Erb’

    19. Klumpke’s Palsy

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