the elbow: bones and actions. terminology proximal and distal medial and lateral superior and...
Post on 19-Dec-2015
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![Page 1: THE ELBOW: Bones and Actions. TERMINOLOGY Proximal and Distal Medial and Lateral Superior and Inferior Ligament and Tendon Condyle – large round projection](https://reader035.vdocuments.mx/reader035/viewer/2022062421/56649d3e5503460f94a166cb/html5/thumbnails/1.jpg)
THE ELBOW:Bones and Actions
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TERMINOLOGY
Proximal and Distal Medial and Lateral Superior and Inferior Ligament and Tendon Condyle – large round projection Epicondyle – a projection located above a condyle Fossa- hollow, depression or flattened surface Tubercle - small round projection *Supination – external rotation of the radius *Pronation – internal rotation of the radius
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BONES
Medial View
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BONES Scapula Humerus Radius Ulna
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RADIUS
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ULNA
Trochlear Notch
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HUMERUS
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SCAPULAA
nter
ior
Pos
terio
r
Posterior
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LANDMARKS
Radius 1. Head 3. Radial tuberosity Styloid process
Ulna 1. Olecranon process 2. Trochlear notch 3. Coronoid process Styloid process
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1. Head
3. Radial tuberosity
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1. Olecranon process2. Trochlear notch
3. Coronoid process
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HUMERUS
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LANDMARKS
Humerus 1. Head 3. Lesser tubercle 4. Intertubercaluar groove 5. Greater tubercle 2. Lateral epicondyle 3. Captitulum 4. Trochlea 5. Medial epicondyle 7. Olecranon fosssa
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Coracoid Process
Glenoid Cavity
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JOINTS Humeroulnar
the “elbow”; a hinge joint Trochlea (humerus) Trochlear notch (ulna)
Radioulnar movement of the forearm; a pivot joint Head of radius Ulna
Radiohumeral no true actions Capitulum (humerus) Head of the radius
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LIGAMENTS
Ulnar Collateral Radial Collateral Annular Ligament
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LIGAMENTS
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ACTIONS
Elbow or Humeroulnar Joint (Movement of the Ulna) Flexion of the elbow Extension of the elbow
Forearm or Radioulnar Joint (Movement of the Radius) Supination of the forearm Pronation of the forearm
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ACTIONS
Extension
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ACTIONS
What would be the location of a muscle that does elbow extension?
What would be the location of a muscle that does elbow flexion? Ulna
Posterior Anterior
Hum
erus
Fingers
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ACTIONS
SupinationPronation
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ACTIONS
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ACTIONS
Supination PronationPalm Up Palm Down
Where is the radius after pronation?
Where would a muscle need to be located in order to cause pronation?
Lateral Medial
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ACTIONS
Where is the radius after supination?
Where would a muscle need to be located in order to cause supination?
Supination PronationPalm Up Palm Down
Lateral Medial
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What position his right elbow in? His right forearm? His left elbow?
What position is his right forearm in? What is his name?
What position is his left elbow in?
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What positions are her right elbow and forearm in?
What positions are her left elbow and forearm in?