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54 Cards in this Set
- Front
- Back
Origin and attachment of pectoralis minor |
Origin: 3rd-5th rib Insertion: coracoid process of scapular |
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Innervation of pectoralis minor |
Middle pectoral nerve |
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Origin and insertion of serratus anterior |
Origin: lateral aspect of 1-8 ribs Insertion: coastal facing surface of medial border of scapular |
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Innervation of serratus anterior |
Long thoracic nerve |
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Origin and insertion of subclavius muscle |
Origin: Costichondral junction of 1st rib Insertion: inferior surface of middle third of clavicle |
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What are extrinsic muscle of the shoulder |
They originate from the trunk and attach to the bones of the shoulder (clavicle, humerus and scapular) |
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Innervation of subclavius |
Nerve to subclavius |
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The most superficial back muscle is |
Trapezius |
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Origin and insertion of trapezius |
Origin: skull, nuchal ligament and spinous process of C7-T12 Insertion: clavicle, acromion and scapular spine |
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Innervation of trapezius muscle |
Accessory nerve and proprioceptive fibers from C3 and C4 |
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Origin and insertion of latissimus dorsi |
Origin: spinous process of T6-T12, thoracolumbar fascia, iliac crest and inferior 3 ribs. Insertion: intertubercular sulcus of humerus |
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Innervation of latissimus dorsi |
Thoracodorsal nerve |
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Deep muscles of the back |
Levator scapulae Rhomboid major and minor |
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Origin and insertion of levator scapulae |
Origin: transverse process of C1-C4 Insertion: medial border of scapular. |
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Innervation of rhomboid major |
Dorsal scapular |
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Origin and insertion of rhomboid major |
Origin: spinous process of T2-T5 Insertion: medial border of scapular btw scapular spine and inferior border |
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Innervation of levator scapulae |
Dorsal scapular nerve |
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Origin and insertion of rhomboid minor muscle |
Origin: spinous process of C7-T1 Insertion: medial border of scapular at the level of scapular spine |
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Innervation of rhomboid minor |
Dorsal scapular nerve |
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Origin and insertion of deltoid muscle |
Origin: lateral third of clavicle, scapular spine and acromion. Insertion: deltoid tuberosity |
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Origin and insertion of teres major |
Origin: inferior angle dorsal surface of scapular Insertion: crest of lesser tubercle of humerus |
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List the Rotator cuff muscles |
Supraspinatus Infraspinatus Subscapularis Teres minor |
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What are rotator cuff muscles |
They are a group of four muscles that originate from scapular and attach to humeral head, collectively they pull humeral head into the glenoid fossa |
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Origin and insertion of supraspinatus muscle |
Origin: supraspinous fossa of scapular Insertion: greater tubercle of the humerus |
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Action of supraspinatus muscle |
Abduct the arm 0°-15° Assist deltoid in 15-90° |
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Origin and insertion of infraspinatus muscle |
Origin: infraspinatus fossa on scapular Insertion: greater tubercle of humerus |
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Innervation of supraspinatus and infraspinatus muscle |
Suprascapular nerve |
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Origin and insertion of Teres minor |
Origin: posterior surface of scapular Insertion: greater tubercle of humerus |
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Origin and insertion of subscapularis |
Origin: subscapular fossa on costal surface of scapular Insertion: lesser tubercle of humerus |
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Innervation of Teres minor |
Axillary nerve |
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Innervation of subscapularis |
Upper and lower subscapular nerve |
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Principal flexors of elbow joint |
Biceps brachii, brachioradialis and brachialis |
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Extensors of elbow joint |
Triceps brachii and anconeus |
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Origin and insertion of biceps brachii |
Origin: long head supraglenoid tubercle; short head coracoid process Insertion: radial tuberosity |
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Origin and insertion of brachalis |
Origin: medial and lateral surface of humeral shaft Insertion: ulna tuberosity |
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Origin and insertion of coracobrachialis |
Origin: coracoid process of scapular Insertion: medial side of humeral shaft at level of deltoid tubercle |
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Superficial muscle of anterior compartment of forearm |
Flexor carpi ulnaris Palmaris longus Flexor carpi radialis Pronator teres |
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Origin and insertion of flexor carpi ulnaris |
Origin: medial epicondyle Insertion: pisiform |
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Origin and insertion of plamaris longus |
Origin: medial epicondyle Insertion: flexor retinaculum |
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Origin and insertion of flexor carpi radialis |
Origin: medial epicondyle Insertion: base of metacarpal 2&3 |
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Origin and insertion of pronator teres |
Origin: medial epicondyle and coronoid process of ulna Insertion: laterally to mid shaft of radius |
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Origin and insertion of flexor digitorum superficialis |
Origin: medial epicondyle and other part of radius Insertion: middle phalanges of four fingers |
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Muscle found deep in anterior fore arm compartment |
Flexor digitorum profunda Flexor pollicis longus Pronators quadratus |
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Origin and insertion of flexor digitorum profunda |
Origin: ulna and associated interrosseous membrane Insertion: distal phalanges of four fingers |
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Origin and insertion of flexor pollis longus |
Origin: anterior surface of radius and interossoeus membrane Insertion: distal phalanx of thumb |
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Origin and insertion of pronator quadratus |
Origin: anterior surface of ulna Insertion: anterior surface of radius |
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Why is brachioradialis referred to as a paradoxical muscle |
Because its origin, insertion and innervation are that of an extensor muscle but it flexes the elbow joint |
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Origin and insertion of brachioradialis |
Origin: proximal part of supracondular ridge of humerus Insertion: distal end of radius just before the radial styloid process |
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Origin and insertion of extensor carpi radialis longus and brevis |
Origin:The ECRL originates from the supracondylar ridge, while the ECRB originates from the lateral epicondyle. Insertion: Their tendons attach to metacarpal bones II and III. |
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Main extensor of fingers |
Extensor digitorum |
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Origin and insertion of extensor digitorum |
Origin: lateral epicondyle. The tendon continues into in the distal part of the forearm, where it splits into four, Insertion: extensor hood of each finger. |
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Origin and insertion of extensor Carpi Ulnaris |
Origin: lateral epicondyle of the humerus, Insertion: base of metacarpal V. |
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Muscles in the deep compartment of the posterior forearm – |
the supinator, abductor pollicis longus, extensor pollicis brevis, extensor pollicis longus extensor indicis. |
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Origin and insertion of supinator |
Origin: It has two heads of origin. One originates from the lateral epicondyle of the humerus, the other from the posterior surface of the ulna. Insertion: They insert together into the posterior surface of the radius. |