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Biceps Brachii

Last updated on Monday, April 27 2009 by blondarb

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Muscle Name: biceps brachii

AKA: musculus biceps brachii

Abbreviation:  BB

Spinal Nerve Roots:

Brachial Plexus Trunks:
    upper trunk

Brachial Plexus Cords:
    lateral cord

Named Nerves:
    musculocutaneous nerve

Proximal Attachment:  coracoid process of the scapula. long head: supraglenoid tubercle

Distal Attachment:  radial tuberosity

Action:  flexes elbow and supinates forearm

Needle Insertion: With the arm supinated the needlie is inserted midway between the biceps tendon and the anterior shoulder.

Activation for EMG:  Flex the elbow with the hand supinated.