Arm muscles

Card Set Information

Author:
mfawcett
ID:
125427
Filename:
Arm muscles
Updated:
2011-12-31 07:10:02
Tags:
arm muscle muscles origin insertion anatomy function nerve supply action
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Description:
Origins, insertions, actions and nerve supply of muscles of the arm.
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  1. Biceps brachii
    • - Long head: Supraglenoid tubercle (from labrum)
    • Short head: Coracoid process
    • --> Radial tuberosity and bicipital aponeurosis
    • - Musculocutaneous nerve
    • - Flexes and supinates elbow, stabilises humeral head, minor flexor of shoulder
  2. Coracobrachialis
    • - Coracoid process
    • --> Midway down medial aspect of humerus
    • - Musculocutaneous nerve
    • - Adducts shoulder
  3. Brachialis
    • - Distal anterior aspect of humerus and medial intermuscular septum
    • --> Coronoid process of ulna
    • - Musculocutaneous nerve
    • - Flexes elbow
  4. Triceps brachii
    • - Long head: infraglenoid tubercle
    • Lateral and medial (deep) heads: posterior aspect of humerus
    • --> Olecranon process of ulna
    • - Radial nerve
    • - Extends elbow

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