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29 Cards in this Set
- Front
- Back
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what are the bones of the shoulder complex?
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Sternum, Clavicle, Scapula, Humerus.
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Name the parts of the Sternum ( Axial Skeleton)?
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Manubrium, Body, Xiphoid
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Name the articulations of the sternum?
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Sternoclavicular joint, there are many articulations with ribs 1 - 7
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What is sternoclavicular joint?
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Synovial joint which links the upper extremity to the axial skeleton. it is a saddle shaped joint with a disc.
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What is Manubrium?
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superior part of the sternum, Jugular in superior midline, clavicular facets where the clavicles articulate with the sternum.
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Sternum: The body?
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majority of sternum, multicple facets for articulations with ribs.
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What is the Xiphoid process?
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Inferior tip of sternum.
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Shoulder complex: Describe the Clavicle?
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Appendicular Skeleton,
S shaped bone located superior to the 1st rib, ligamentous attachments to the 1st ribs and 2 articulation surface. |
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What are the Clavicle's articulation?
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Sternoclavicular joint located medially and allows great mobility, Acromioclavicular joint: Synovial joint located laterally. it is considered a gliding joint. occasional disc.
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Describe the Clavicles Posture?
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In anatomical position, lateral end of the clavicle is 20 degrees posterior to the medial end.The clavicle is positioned such that the acromial end is slightly higher then the sternal end.
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What is the Glenohumeral Joint?
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Synovial ball and socket joint.
3 DOF, Concave fossa. Glenoid fossa and Head of humerus. |
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What is Glenoid Labrum?
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Fibrous connective tissue deepen the glenoid fossa. helps with stability of the joint.
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Describe the head of humerus?
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It is concave, and twice larger than glenoid fossa.
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What muscles attach to the Greater tubercle?
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Supraspinatus, infraspinatus, teres minor, and subscapularis muscle
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Where is the Greater tubercle located?
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It’s posterior laterally of the humerus
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Where is the Lesser Tubercle located?
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Anteriorly medial part of the humerus.
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What muscle is attach to the Lesser Tubercle?
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The Subscapularis muscle.
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Where is Intertubercular ( bicepital) groove located?
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It’s located between the greater and lesser tubercles
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What tendon insert on the intertubercular groove?
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The long head of the biceps tendon.
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What is the position of the normal position of the glenohumeral joint?
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The humerus is twisted 30 degree posterior. Epicondyles are in frontal plane, head angle is 135 degree relation to the shaft. shaft vertical with olecranon fossa facing posterior.
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What are the joints of the shoulder complex?
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Sternoclavicular SC
Scapulothoracic ST Acromiolavicular AC Glenohumeral GH |
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What are the primary scapular elevators?
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Upper trapezius
Levator scapula Rhomboids |
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What are the primary scapular depressors?
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Lower trapezius
Latissimus dorsi Pectoralis minor Subclavius |
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What are the primary scapular upward rotators?
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Serratus anterior
Upper trapezius Lower trapezius |
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What are the primary scapular downward rotators?
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Rhomboids
Pectoralis minor |
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What are the primary scapular retractors?
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Rhomboids
Middle trapezius |
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What are the primary glenohumeral joint abductors?
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Supraspinatus
Anterior deltoid Middle deltoid |
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What are the primary glenohumeral joint flexors?
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Anterior deltoid
Pectoralis major (clavicular head) Coracobrachialis Biceps brachii |
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What are the primary glenohumeral joint adductors?
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Teres major
Latissimus dorsi Pectoralis major |
