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9 terms

Cat Myology- Deep Shoulder

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Rhomboideus Major
Origin: cervical & thoracic vertebrae

Insertion: scapula

Action: Pulls scapula dorsally
Rhomboidieus Minor
Origin: Cervical vertebrae

Insertion: Scapula

Action: Pulls scapula dorsally
Rhomboideus capitis
Origin: Occipital

Insertion: Scapula (angle)

Action: Draws scapula cranially
Splenius
Origin: Mid-dorsal fascial line

Insertion: Lambdoidal ridge

Action: Turns and elevates head
Supraspinatus
Origin: Scapula (Supraspinous fossa)

Insertion: Humerus (Greater Tubercule)

Action: Extends humerus
Infraspinatus
Origin: Scapula (Infraspinous fossa)

Insertion: Humerus (Grater tubercle)

Action: Laterally Rotates Humerus
Teres major
Origin: Scapula (Axillary border)

Insertion: Humerus (Medial surface)

Action: Flexes and Medially rotates humerus
Teres minor
Origin: Scapula (Lateral border)

Insertion: Humerus (Greater tubercle)

Action: Laterally Rotates humerus
Subscapularis
Origin: Subscapular fossa

Insertion: Lesser tubercle of humerus

Action: Draws humerus medially