KIN 324K LAB LECTURE 4

KIN 324K LAB LECTURE 4 - Applied Human Anatomy Lab Lab...

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Applied Human Anatomy Lab Lab Lecture IV: Shoulder, Chest, Upper Arm, Elbow, Forearm, & Hand
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General Information Lab Time: Tues. 1-4 PM, BEL 404 Fri. 1-4 PM, BEL 404 Attendance is mandatory; 3 absences will results in an F Excused absences require official reason, advanced notice Office Hours: 10-noon, M-F; BEL 966
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Shoulder Girdle Attach upper extremity bones to axial skeleton Sterno- clavicular joint
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Clavicle Clavicle : collar bone Articulates with sternum at sterno-clavicular joint , with scapula at acromio-clavicular joint Holds the scapula and arms out laterally Transmits force from upper extremity to trunk Protects major underlying vessels, lungs, brachial vessels Costal tuberosity
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Scapula Scapula : shoulder blade Articulates with clavicle, humerus Large triangular flat bone; 2” from vertebral column Positioned freely by skeletal muscle Glenoid cavity : small shallow fossa Acromion : roughened triangular projection Coracoid process : anchors the biceps
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Posterior view Lateral view
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Humerus Largest, longest bone in upper body Articulates proximally with scapula, distally Fractures Proximal fractures : occur in elderly women with osteoporosis Midshaft fractures : may cause radial nerve injury, sensation over back of hand, weakness of hand/wrist muscles
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Shoulder Joint
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Muscles of the Shoulder Girdle Mostly run from ribs and vertebral column to the shoulder girdle Fix scapula to the wall of thorax Move scapula to increase range or arm motions
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Anterior Thorax Muscles Seratus Anterior : scapula protraction/abduction (PM) Abduction/raising of arm, horizontal arm movements (pushing, punching) Pectoralis Minor: depression and stabilization
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This note was uploaded on 04/12/2009 for the course KIN 75275 taught by Professor Farra during the Spring '08 term at University of Texas.

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KIN 324K LAB LECTURE 4 - Applied Human Anatomy Lab Lab...

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