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Rasmussen
shoulder and arm
| Question | Answer |
|---|---|
| Action: Abduct the shoulder | Deltoid |
| Origin: Lateral 1/3rd of the clavicle, acromion, spine of scapula | Deltoid |
| Insertion: Deltoid tuberosity | Deltoid |
| Action: Extend head and neck, laterally flex head and neck to same side, elevate, adduct scapula, depress scapula | Trapezius |
| Origin: External occipital protuberance, medial portion of superior nuchal line of occiput, ligamentum nuchae, spinous processes of C-7-T12 | Trapezius |
| Insertion: Lateral 1/3rd of clavicle, acromion, spine of scapula | Trapezius |
| Action: Extend, adduct, medially rotate the shoulder | Latissimus dorsi |
| Origin:Spinous processes of last 6 thoracic vertebrae, last 3-4 ribs, thoracolumnar aponeurosis, posterior iliac crest | Latissimus dorsi |
| Insertion: Crest of the lesser tuberacle of the humerus | Latissimus dorsi |
| Action: Extend, adduct, medially rotate the shoulder | Teres major |
| Origin: Lateral side of the inferior angle and lower half of the lateral border of the scapula | Teres major |
| Insertion: Crest of the lesser tubercle of the humerus | Teres major |
| Action: Abduct shoulder, stabilize head of humerus in glenoid cavity | Supraspinatus |
| origin: Supraspinous fossa of the scapula | Supraspinatus |
| Insertion: Greater tubercle of the humerus | Supraspinatus |
| Action: Laterally rotate, adduct, extend, horizontally abduct the shoulder, stabilize head of humerus in glenoid cavity | Infraspinatus |
| Origin: Infraspinous fossa of the scapula | Infraspinatus |
| Insertion: Greater tubercle of the humerus | Infraspinatus |
| Action: Laterally rotate, adduct, extend, horizontally abduct shoulder, stabilize head of humerus in glenoid cavity | Teres minor |
| Origin: Superior half of the lateral | Teres minor |
| Insertion: Greater tubercle of the humerus | Teres minor |
| Action: Medially rotate shoulder, stabalize head of humerus in glenoid cavity | Subscapularis |
| Origin: Subscapular fossa of the scapula | Subscapularis |
| Insertion: lesser tubercle of the humerus | Subscapularis |
| Action: adduct, elevate, downwardly rotate scapula | Rhomboid Major |
| Origin: Spinous processes of T-2-T-5 | Rhomboid Major |
| Insertion: medial border of the scapula between the spine of the scapula and inferior angle | Rhomboid Major |
| Action: adduct, elevate, downwardly rotate scapula | Rhomboid Minor |
| Origin: Spinous process of C-7 to T-1 | Rhomboid Minor |
| Insertion: upper portion of medial border of the scapula, across from spine of scapula | Rhomboid Minor |
| Action: Elevate, downwardly rotate shoulder laterally flex, extend head and neck, rotate the head and neck to the same side | Levator Scapula |
| Origin: transverse process of 1st through 4th cervical vertebrae | Levator Scapula |
| Insertion: upper region of medial border and superior angle of scapula | Levator Scapula |
| Action: Abduct, depress the scapula, hold the medial border of the scapula against the rib cage, may act in forced exhalation | Serratus Anterior |
| Origin: surfaces of upper 8 or 9 ribs | Serratus Anterior |
| Insertion: Anterior surface of medial border of the scapula | Serratus Anterior |
| Action: adduct, medially rotate, flex, horizontally rotate, extend the shoulder, assist in elevating the thorax in forced inhalation | Pectoralis Major |
| Origin: Medial hald of the clavicle, sternum, and cartilage of the 1st through 6th ribs | Pectoralis Major |
| Insertion: crest of the greater tubercle of humerus | Pectoralis Major |
| Action: depress, abduct, and tilt the scapula anteriorly, assist in forced exhalation | Pectoralis Minor |
| Origin: 3rd, 4th, and 5th ribs | Pectoralis Minor |
| Insertion: coracoid process of the scapula | Pectoralis Minor |
| Action: Draw clavicle inferiorly and anteriorly, elevate 1st rib, stabalize the sternoclavicular joint | Subclavius |
| Origin: 1st rib and cartilage | Subclavius |
| Insertion: inferior, lateral aspect of the clavicle | Subclavius |
| Action: Flex the elbow, supinate the forearm, flex the shoulder | Bicep Brachii |
| Origin: short head: coracoid process of scapula Long head: supraglenoid tubercle of scapula | Bicep Brachii |
| Insertion: tuberosity of the radius and aponeurosis of the bicep brachii | Bicep Brachii |
| Action: extend the elbow, extend the shoulder, adduct the shoulder | Tricep brachii |
| Origin: long head: infraglenoid tubercle of scapula lateral head: posterior surface of proximal half of humerus Medial head: posterior surface of distal half of humerus | Tricep Brachii |
| Insertion: Olecranon process of the ulna | Tricep Brachii |
| Action: Flex and adduct the shoulder | CoracoBrachialis |
| Origin: Coracois process of the scapula | Coracobrachialis |
| Insertion: medial surface of the midhumeral shaft | Coracobrachialis |
Created by:
adensmamma
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