Muscles of Thorax PPT

June 25, 2012 | By | Reply More

Muscles of Thorax PPT

Power point lecture slide

Muscle Origin Insertion Action Innervation
Pectoralis major Sternum, Ribs 2-6 Inter-tubercular groove of humerus Adduct, Flex, Med Rotate Arm M & L pectorals
Pectoralis minor Ribs 3-5 Coracoid process of scapula Depress, Rotate scapula M & L pectorals
Serratus anterior (ventralis) Ribs 1-9 Scapula Protract, Rotate scapula Long Thoracic
Trapezius Ligamentum nuchae,     C7-T12 Clavicle, Spine & acromion of scapula Elevate, Adduct, Rotate, Depress Accessory
Levator Scapulae C1-C4 Medial border of scapula Elevate  scapula D. Scapular
Rhomboids C7-T5 Medial border of scapula Adduct, Elevate, Rotate D. Scapular

 

Rotator Cuff Muscles

Muscle Origin Insertion Action Innervation
Supraspinatus Supraspinous fossa of scapula Greater tubercle of humerus Abduction of arm Suprascapular
Infraspinatus Infraspinous fossa of scapula Greater tubercle of humerus Lat rotation of arm Suprascapular
Teres Minor Lateral border of scapula Greater tubercle of humerus Lat rotation of arm Axillary
Subscapularis Subscapular fossa of scapula Lesser tubercle of humerus Med rotation of arm Subscapular

 

Category: Medical

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