ch_11_part3 - 11-6 Appendicular Musculature•Muscles That...

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Unformatted text preview: 11-6 Appendicular Musculature•Muscles That Move the Arm–Subscapularisand teres major •Produce medial rotation at shoulderFigure 11-15a Muscles That Move the ArmDeep DissectionMuscles ThatMove the ArmRibs (cut)SubscapularisCoracobrachialisTeres majorBiceps brachii,short headBiceps brachii,long headVertebra T12Anterior view11-6 Appendicular Musculature•Muscles That Move the Arm–Infraspinatusand teres minor •Produce lateral rotation at shoulder–Coracobrachialis•Attaches to scapula•Produces flexion and adduction at shoulderFigure 11-15b Muscles That Move the ArmDeep DissectionMuscles ThatMove the ArmSupraspinatusInfraspinatusTeres minorTeres majorTriceps brachii,long headTriceps brachii,lateral headPosterior viewFigure 11-15a Muscles That Move the ArmDeep DissectionMuscles ThatMove the ArmRibs (cut)SubscapularisCoracobrachialisTeres majorBiceps brachii,short headBiceps brachii,long headVertebra T12Anterior view11-6 Appendicular Musculature•Muscles That Move the Arm–Pectoralis major •Between anterior chest and greater tubercle of humerus•Produces flexion at shoulder joint–Latissimus dorsi•Between thoracic vertebrae and humerus•Produces extension at shoulder jointFigure 11-15a Muscles That Move the ArmSuperficial DissectionMuscles ThatMove the ArmDeltoidSternumClaviclePectoralis majorAnterior viewFigure 11-15b Muscles That Move the ArmSuperficial DissectionMuscles ThatMove the ArmPosterior viewSupraspinatusDeltoidLatissimus dorsiThoracolumbarfasciaVertebra T111-6 Appendicular Musculature•The Rotator Cuff–Muscles involved in shoulder rotation•Supraspinatus, subscapularis, infraspinatus, teres minor, and their tendonsFigure 11-15a Muscles That Move the ArmDeep DissectionMuscles ThatMove the ArmRibs (cut)SubscapularisCoracobrachialisTeres majorBiceps brachii,short headBiceps brachii,long headVertebra T12Anterior viewFigure 11-15b Muscles That Move the ArmDeep DissectionMuscles ThatMove the ArmSupraspinatusInfraspinatusTeres minorTeres majorTriceps brachii,long headTriceps brachii,lateral headPosterior viewTable 11-12 Muscles That Move the Arm (Figures 11–13 to 11–15)11-6 Appendicular MusculatureA&P FLIX Rotator Cuff Muscles: An Overview (a)A&P FLIX Rotator Cuff Muscles: An Overview (b)11-6 Appendicular Musculature•Muscles That Move the Forearm and Hand–Originate on humerus and insert on forearm–Exceptions:•The major flexor (biceps brachii)•The major extensor (triceps brachii)11-6 Appendicular Musculature•Muscles That Move the Forearm and Hand–Extensors•Mainly on posterior and lateral surfaces of arm–Flexors•Mainly on anterior and medial surfaces11-6 Appendicular Musculature•Flexors of the Elbow–Biceps brachii•Flexes elbow•Stabilizes shoulder joint•Originates on scapula•Inserts on radial tuberosity–Brachialisand brachioradialisFigure 11-16b Muscles That Move the Forearm and HandCoracoid processof scapulaHumerusCoracobrachialisBiceps brachii,short headBiceps brachii,long headTriceps brachii,...
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This note was uploaded on 12/29/2011 for the course BIOLOGY 24011 taught by Professor Pan during the Fall '11 term at HCCS.

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ch_11_part3 - 11-6 Appendicular Musculature•Muscles That...

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