Part 4: Forearm: Ulna & Radius

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9 Terms

1
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Bones included in Forearm

Ulna

Radius

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Define/Explain the olecranon fossa

  1. a depression on posterior distal humerus

  2. forms elbow joint

  3. accommodates proximal ulna

<ol><li><p><span>a depression on posterior distal humerus</span></p></li><li><p><span>forms elbow joint</span></p></li><li><p><span>accommodates proximal ulna</span></p></li></ol><p></p>
3
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Location of ulnar notch

On the distal/ medial aspect of radius (accommodates ulna)

<p>On the distal/ medial aspect of <strong>radius </strong>(accommodates ulna) </p><p></p>
4
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Muscles that move the forearm: Radius & Ulna can be categorized as

flexing or extending OR supination or pronation

5
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Muscles that move the forearm: Radius & Ulna: Flexion

  1. Biceps brachii

  2. Brachialis

  3. Brachioradialis/ supinator longus

6
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Muscles that move the forearm: Radius & Ulna: Extension

  1. Triceps brachii

  2. Anconeus

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Muscles that move the forearm: Radius & Ulna: Supination

  • Supinator

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Muscles that move the forearm: Radius & Ulna: Pronation 

  • Pronator quadratus

  • Pronator teres

  • Anconeus

9
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Muscles that move the forearm: Radius & Ulna: Extension & Pronation

Anconeus

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