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Muscle Group 5
Muscles That Move the Forearm
Question | Answer |
---|---|
Biceps brachii | Origin: Short head - Scapula (coracoid process); Long head - Scapula (supraglenoid tubercle) Insertion: Radius (radial tuberosity) Action: Flexes forearm at elbow (synergist to brachiallis); Supinates forearm |
Barchialis | Origin: Humerus (anterior shaft) Insertion: Ulna (coronoid process) Action: Flexes forearm at elbow |
Brachioradialis | Origin: Humerus (lateral supracondylar ridge) Insertion: Radius (styloid process) Action: Flexes forearm at elbow (synergist to biceps brachii) |
Triceps brachii (long, lateral, medial) | Origin: Scapula (infraglenoid tubercle); Posterior proximal humerus Insertion: Ulna (olecranon process) Action: Extends forearm at elbow |