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8 Cards in this Set
- Front
- Back
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Pectoralis Major |
*Muscles from the Axial Skeleton to the Humerus*
Origin: Medial half of Clavicle Sternum Costal Cartilages of ribs 2-6
Insertion: Crest of greater tubercle of Humerus
Action: Adducts arm (Shoulder) Medially rotates arm (Shoulder)
Innervation: Medial pectoral nerve Lateral pectoral nerve
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Latissimus Dorsi
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*Muscles from the Axial Skeleton to the Humerus*
Origin: Spinous processes of T7-T12 vertebrae Thoracolumbar fascia Iliac crest Ribs 9-12
Insertion: Floor of intertubercular sulcus (biciptial groove) of Humerus
Action: Adducts arm (Shoulder) Extends arm (Shoulder) Medially rotates arm (Shoulder)
Innervation: Thoracodorsal nerve
(Handcuff)
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Subscapularis |
*Muscles from the Pectoral Girdle to the Humerus*
Origin: Subscapular fossa of Scapula
Insertion: Humerus
Action: Rotates arm (Shoulder)
(Rotator Cuff) |
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Supraspinatus
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*Muscles from the Pectoral Girdle to the Humerus*
Origin: Supraspinous fossa of Scapula
Insertion: Humerus
Action: Abducts arm (Shoulder)
Innervation: Suprascapular nerve
(Rotator Cuff) |
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Infraspinatus
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*Muscles from the Pectoral Girdle to the Humerus*
Origin: Infraspinous fossa at Scapula
Insertion: Humerus
Action: Rotates arm (Shoulder)
(Rotator Cuff) |
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Teres Minor
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*Muscles from the Pectoral Girdle to the Humerus*
Origin: Scapula
Insertion: Humerus
Action: Rotates arm (Shoulder)
Innervation: Axillary nerve
(Rotator Cuff) |
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Teres Major |
*Muscles from the Pectoral Girdle to the Humerus*
Origin: Scapula
Insertion: Humerus
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Deltoid |
*Muscles from the Pectoral Girdle to the Humerus*
Origin: Lateral third of Clavicle Acromion of Scapula Spine of Scapula
Insertion: Deltoid tuberosity of Humerus
Action: Anterior - Flex arm (Shoulder) - Medially rotate arm (Shoulder) Middle - Abduct arm (Shoulder) Posterior - Extend arm (Shoulder) - Laterally rotate arm (Shoulder)
Innervation: Axillary nerve
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