click below
click below
Normal Size Small Size show me how
UE - Muscles
Anterior Chest
| Question | Answer |
|---|---|
| Pectoralis Major - Origin | Clavicular Head: Medial 1/2 of the Clavicle Sternocostal Head: Anterior Surface of the Sternum, 1st-6th Costal Cartilages, Aponeurosis of the External Oblique M. |
| Pectoralis Major - Insertion | Lateral Lip of the Intertubercular Groove of the Humerus |
| Pectoralis Major - Innervation | Lateral Pectoral N. (C5-C7) & Medial Pectoral N. (C8-T1) |
| Pectoralis Major - Action | Humerus: Adduction, Medial Rotation Sternal Head: Helps Extend a Flexed Humerus Clavicular Head: Helps Flex Humerus |
| Pectoralis Major - Blood Supply | Pectoral Branch of the Thoracoacromial Trunk A. |
| Pectoralis Minor - Origin | 3rd-5th Ribs Anteriorly |
| Pectoralis Minor - Insertion | Coracoid Process |
| Pectoralis Minor - Innervation | Medial Pectoral N. (C8-T1) |
| Pectoralis Minor - Action | Scapula: Protraction Closed Chain: Elevate Ribs |
| Pectoralis Minor - Blood Supply | Pectoral Branch of the Thoracoacromial Trunk A. |
| Subclavius - Origin | 1st Rib at Costochondral Junction |
| Subclavius - Insertion | Middle 1/3rd Clavicle on the Inferior Surface |
| Subclavius - Action | Clavicle depression |
| Subclavius - Blood Supply | Clavicular Branch of the Thoracoactomial Trunk A. |