kinesiology lab 2 - the upper extremity origins and insertions

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10 Terms

1
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biceps brachii

  • origin: supraglenoid tubercle of scapula (long head) and corcaroid process of scapula (short head)

  • insertion: both heads insert distally into radial tuberosity and fascia of forearm

<ul><li><p>origin: supraglenoid tubercle of scapula (long head) and corcaroid process of scapula (short head)</p></li><li><p>insertion: both heads insert distally into radial tuberosity and fascia of forearm</p></li></ul>
2
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brachioradialis

  • origin: lateral supracondylar ridge of humerus/lateral intramuscular septum

  • insertion: (proximal to) styloid process of radius

<ul><li><p>origin: lateral supracondylar ridge of humerus/lateral intramuscular septum</p></li><li><p>insertion: (proximal to) styloid process of radius</p></li></ul>
3
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brachialis

  • origin: anterior surface of distal humerus

  • insertion: coronoid process of ulna and ulnar tuberosity

<ul><li><p>origin: anterior surface of distal humerus</p></li><li><p>insertion: coronoid process of ulna and ulnar tuberosity</p></li></ul>
4
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palmaris longus

  • origin: medial epicondyle of humerus

  • insertion: flexor retinaculum, palmar aponeurosisis

<ul><li><p>origin: medial epicondyle of humerus</p></li><li><p>insertion: flexor retinaculum, palmar aponeurosisis</p></li></ul>
5
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pronator teres

  • origin:

    • humeral head - medial supracondylar ridge of humerus

    • ulnar head - coronoid process of ulna

  • insertion: lateral surface of radius (distal to supinator)

<ul><li><p>origin:</p><ul><li><p>humeral head - medial supracondylar ridge of humerus</p></li><li><p>ulnar head - coronoid process of ulna</p></li></ul></li><li><p>insertion: lateral surface of radius (distal to supinator)</p></li></ul>
6
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pronator quadratus

  • origin: distal anterior surface of ulna

  • insertion: distal anterior surface of radius

<ul><li><p>origin: distal anterior surface of ulna</p></li><li><p>insertion: distal anterior surface of radius</p></li></ul>
7
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supinator

  • origin: lateral epicondyle of humerus, radial collateral ligament, annular ligament, supinator crest of ulna

  • insertion: lateral, posterior, and anterior surfaces of proximal 3rd of radius

<ul><li><p>origin: lateral epicondyle of humerus, radial collateral ligament, annular ligament, supinator crest of ulna</p></li><li><p>insertion: lateral, posterior, and anterior surfaces of proximal 3rd of radius</p></li></ul>
8
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triceps brachii

  • origin:

    • Long head - infra glenoid tubercle of the scapula

    • Medial head - posterior surface of the humerus (inferior to radial groove)

    • Lateral head - posterior surface of the humerus (superior to radial groove)

  • insertion: olecranon of ulna and fascia of forearm

<ul><li><p>origin:</p><ul><li><p><strong>Long head</strong><span style="font-family: PlutoSansLight, Helvetica, Arial, sans-serif; color: rgb(73, 83, 84)"> - infra glenoid tubercle of the scapula</span></p></li><li><p><strong>Medial head</strong><span style="font-family: PlutoSansLight, Helvetica, Arial, sans-serif; color: rgb(73, 83, 84)"> - posterior surface of the humerus (inferior to radial groove)</span></p></li><li><p><strong>Lateral head</strong><span style="font-family: PlutoSansLight, Helvetica, Arial, sans-serif; color: rgb(73, 83, 84)"> - posterior surface of the humerus (superior to radial groove)</span></p></li></ul></li><li><p>insertion: olecranon of ulna and fascia of forearm</p></li></ul>
9
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wrist flexors

  • origin: connects the interosseous margins of radius and ulna

    • medial epicondyle of humerus

  • insertion: base of 2nd and 3rd metacarpals

<ul><li><p>origin: connects the interosseous margins of radius and ulna</p><ul><li><p>medial epicondyle of humerus</p></li></ul></li><li><p>insertion: base of 2nd and 3rd metacarpals</p></li></ul>
10
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wrist extensors

  • origin: lateral epicondyle of humerus

  • insertion: bases of 2nd and 3rd phalanges of 4 fingers

<ul><li><p>origin: lateral epicondyle of humerus</p></li><li><p>insertion: bases of 2nd and 3rd phalanges of 4 fingers</p></li></ul>