Comparative Anatomy - Cat - Muscles - Shoulder - Deep
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8 terms
Latin | English |
|---|---|
| Rhomboideus |  Origin - Upper thoracic vertebrae. Insertion - Medial border of scapula. Action - Draws scapula dorsally. |
| Rhomboideus capitis | Origin - Lambdoidal ridge of skull. Insertion - Angle of scapula. Action - Draws scapula crainally |
| Splenius | Origin - Mid-dorsal fascial line. Insertion - Lambdoidal ridge. Action - Turns and elevates head. |
| Supraspinatus | Origin - Supraspinous fossa. Insertion - Greater tubercle of humerus. Action - Extends arm. |
| Infraspinatus | Origin - Infraspinous fossa. Insertion - Greater tubercle of humerus. Action - Rotates arm outward. |
| Teres major | Origin- Axillary border of scapula. Insertion - Medial surface of humerus. Action - Flexes and rotates humerus. |
| Teres minor | Origin - Lateral border of scapula. Insertion - Greater tubercle of humerus. Action - Rotates humerus. |
| Subscapularis | Origin - Subscapular fossa. Insertion - Lesser tubercle of humerus. Action - Draws humerus medially. |
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