Term
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Definition
| Intertubercular (bicipital) groove |
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Term
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Definition
| distal to the tubercles. Most frequently fractured part of the humerus. |
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Term
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Definition
| Midway down the shaft on the lateral side. This V-shaped area is the attachment site for the deltoid muscle. |
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Term
| Medial Tuberosity and Lateral Supracondylar ridges |
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Definition
| Flattened ridges on the distal end. |
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Term
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Definition
Extensor Carpi Radialis Brevis
Origin: Lateral supracondylar ridge of humerus
Insertion: Base of 2nd metacarpal
Action: Extension and abduction at the wrist |
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Term
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Definition
Extensor Carpi Ulnaris
Origin: Lateral epicondyle of the humerus; ulna
Insertion: Base of 5th metacarpal
Action: Extension and adduction at the wrist |
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