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43 Cards in this Set
- Front
- Back
Pectoral Girdle |
Bones: Clavicle Scapula
Four joints: acromioclavicular (acromion to clavicle) scapulothoracic Glenohumeral (scapula to humorus) |
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Clavicle |
sternal end to manubrium with sternoclavicular joint
acromial end to acromion with acromioclavicular joint
fracutes in middle 1/3 80% distal 1/3 15%
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Sternoclavicular joint |
made of: anterior and posterior sternoclavicular ligaments costoclavicular ligament
Motions:
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Acromioclavicular Joint |
articulartion between acromial end of clavical and acromion of scapula
acromoioclavicular ligmaent coracoclavicular ligament (stronger) |
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Shoulder Separation vs shoulder dislocation |
separation of clavicle from acromion vs separation of humerus from glenohumeral joint |
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Scapulla |
2 surfaces, 3 borders, 3 angles supraspinous and infraspinous fossae |
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coracoid process |
corocscapular ligament
musles: |
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Scapular Notch & |
suprascapular nerve goes through both.
super scapular artery goes though Greater scapular notch. |
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Glenoid Cavity |
forms glenohumeral joint. has glenoid labrum supraglenoid and infraglenoid tubercles |
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Scapular movement (elevation) |
trapezius, levator scapulae, rhomboids |
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Scapular movements (depression) |
pectoralis minor, trapezius, serratus anterior |
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Scapular movements (protraction) |
pectoralis minor, serratus anterior |
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Scapular movements (retraction) |
rhomboids, trapezius, latissiumus dorsi |
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Rotation elevating glenoid cavity |
trapezius (superior and inferior), serratus anterior |
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Rotation depressing glenoid cavity
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pectoralis minor, rhomboids, levator scapulae, latissimus dorsi
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Fexion of arm |
deltoid (anterior fibers), coracobrachialis, pectoralis major (clavicular head), biceps brachii (short head) |
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Extension of arm |
deltoid (posterior fibers) triceps (long head), latissiumus dorsi, pectoralis major (sternal head), teres major |
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Abduction of arm |
supraspinatus, deltoid (middle fibers), serratus anterior, trapezius |
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Adduction of arm |
Latissimus dorsi, pectoralis major (sternal and clavicular heads), teres major, triceps (long head), subscapularis |
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Int. Rotation |
subscapularis, pectoralis major (clavicular and sternal heads), teres major,, latissimus dorsi, deltoid (anterior fibers |
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Ext. Roation |
infraspinatus, teres minor, deltoid |
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greater tubercle and crest |
supraspinatus, infraspinatus, teres minor |
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Lesser tubercle and crest |
subscapularis |
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intertubercular groove/sulcus |
tendon of biceps brachii |
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lateral and medial lips of intertubercular groove |
pectoralis major, teres major, latissimus dorsi muscles |
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surgical neck |
axillary nerve |
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Humeral Shaft |
deltoid tuberosity and radial groove |
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Deltoid Tuberosity |
attachment of the deltoid muscle |
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Radial Groove |
radial nerve and profunda brachii artery |
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Glenohumeral Joint |
formed between head of humerus and glenoid cavity glenoid labrum deepens
supported by coracoacromial arch and S.I.T.S. tendons
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articular capsule |
coracohumeral ligament
transverse humeral ligament
glenohumeral ligaments |
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Deltoid
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origin: lateral 1/3 of clavical, acomion and spine of the scapula
insertion: deltoid tuberosity innervation: axillary nerve (C5, C6) Functions: Abducts 15° - 45°, flexes and medially rotates (clavicular portion), extends and laterally rotates (spinous portion) |
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Supraspinatus |
Origin: Suprascapular fossa Insertion: Greater tubericle Innervation: Superscapular nerve |
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Infrasspinatus
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Origin: Infrascapular fossa
Insertion: Greater tubericle Innervation: Superscapular nerve Supply: Superscapular Artery Function: depression of the glenoid cavity |
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Teres minor |
Origin: Middler lateral border of scapula Insertion: Greater tubericle Innervation: axillary nerve (C5,C6) |
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Teres Major |
Origin: Inferior angle of the scapula Insertion: medial lip of intertubercular groove of humerus Innervation: Lower (inferior) subscapular (C5,C6,C7 |
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Subscapularis |
Origin: Subscapular fossa Insertion: lesser tubercle of humerous Innervation: Upper |
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Quadragular Space |
Superior: Teres minor |
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Triagular Spaces |
Superiolateral: Teres Minor |
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Axillary Nerve |
Supplies deltoid muscle and teres minor. |
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Shoulder Anastomosis |
dorsal scapular a. suprascapular a. circumflex scapular a. |
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Subclavian artery major branches |
Vertebral a. Internal thoracic a. Thyrocervical trunk Costocervical a. |
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Thyrocervical trunk branches |
Inferior thyroid a. Transverse cervical a. Superficial branch Deep branch (dorsal scapular a.) Suprascapular a. |