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112 Cards in this Set
- Front
- Back
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What is the ORIGIN for the Trapezius?
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1. external occipital protuberance
2. ligamentum nuchae 3. spinous processes of C1-T12 |
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What is the INSERTION for the Trapezius?
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1. posterior, lateral portion of the clavicle
2. medial surface of the acromion 3. superior spine of scapula |
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What is the ACTION of the Trapezius?
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1. elevates the scapula (upper trap.)
2. upwardly rotates the scapula (upper & lower trap.) 3. downwardly rotates the scapula 4. retracts scapula |
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What nerve INNERVATES the Trapezius?
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spinal accessory (XI cranial)
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What is the ORIGIN for the Latissimus dorsi?
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1. spinous process of T7-L5
2. iliac crest 3. inferior angle of the scapula |
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What is the INSERTION of the Latissimus dorsi?
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bicipital groove of the humerus
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What is the ACTION of the Latissimus dorsi?
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1. extends the arm (from a flexed position)
2. internally (medially) rotates the arm 3. adducts the arm 4. downwardly rotates the scapula |
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What nerve INNERVATES the Latissimus dorsi?
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thoracodorsal
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What is the ORIGIN of the Levator scapulae?
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transverse processes of the upper 3 or 4 cervical vertebrae
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What is the INSERTION of the Levator scapulae?
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superior angle of the scapula
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What is the ACTION of the Levator scapulae?
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1. elevates the scapula
2. assists to downwardly rotate the scapula 3. extends and/or laterally flexes the neck |
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What nerve INNERVATES the Levator scapulae?
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dorsal scapular
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What is the ORIGIN of the Rhomboid minor?
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spinous processes of C7 and T1
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What is the INSERTION of the Rhomboid minor?
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medial border of the scapula at the level of the spine
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What is the ACTION of the Rhomboid minor?
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1. retracts and stabilizes the scapula
2. assists to downwardly rotate the scapula |
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What nerve INNERVATES the Rhomboid minor?
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dorsal scapular
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What is the ORIGIN of the Rhomboid major?
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spinous processes
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What is the INSERTION of the Rhomboid major?
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medial border of the scapula from below the spine
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What is the ACTION of the Rhomboid major?
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1. retracts and stabilizes the scapula
2. assists to downwardly rotate the scapula |
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What nerve INNERVATES the Rhomboid major?
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dorsal scapular
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What is the ORIGIN of the Serratus anterior?
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Anterolateral surface of the upper 8 or 9 ribs
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What is the INSERTION of the Serratus anterior?
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costal aspect of the medial border of the scapula
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What is the ACTION of the Serratus anterior?
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1. protracts the scapula
2. stablizes the scapula 3. assists to upwardly rotate the scapula |
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What nerve INNERVATES the Serratus anterior?
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long thoracic
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What is the ORIGIN of the Deltoid?
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1. anterior portion: lateral portion of the clavicle
2. middle person: acromion process 3. posterior portion: scapular spine |
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What is the INSERTION of the Deltoid?
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deltoid tuberosity
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What is the ACTION of the Deltoid?
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1. anterior portion: flexes and internally rotates the arm
2. middle portion: abducts the arm 3. posterior portion: extends and externally (laterally) rotates the arm. |
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What nerve INNERVATES the Deltoid?
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axillary
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What is the ORIGIN of the Supraspinatus?
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supraspinous fossa
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What is the INSERTION of the Supraspinatus?
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1. uppermost of three facets of the greater tubercle of the humerus
2. capsule of the shoulder joint. |
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What is the ACTION of the Supraspinatus?
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abducts the arm (almost solely for first 20 degrees)
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What nerve INNERVATES the Supraspinatus?
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suprascapular
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What is the ORIGIN of the Infraspinatus?
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infraspinous fossa
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What is the INSERTION of the Infraspinatus?
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1. middle facet of the greater tubercle of the humerus
2. capsule of the shoulder joint |
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What is the ACTION of the Infraspinatus?
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externally rotates the arm
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What nerve INNERVATES the Infraspinatus?
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suprascapular
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What is the ORIGIN of the Teres minor?
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middle half of the scapula's lateral border
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What is the INSERTION of the Teres minor?
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1. lowest of three facets of the greater tubercle of the humerus
2. capsule of the shoulder joint |
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What is the ACTION of the Teres minor?
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externally rotates the arm
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What nerve INNERVATES the Teres Minor?
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axillary
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What is the ORIGIN of the Teres Major?
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lower 1/3 of the scapula's lateral border
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What is the INSERTION of the Teres Major?
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medial lip of the bicipital groove of the humerus
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What is the ACTION of the Teres Major?
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1. internally rotates the arm
2. extends the arm (from a flexed position) |
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What nerve INNERVATES the Teres major?
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lower subscapular
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What is the ORIGIN of the Subscapularis?
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subscapular fossa
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What is the INSERTION of the Subscapularis?
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1. lesser tubercle of the humerus
2. lower part of the capsule of the shoulder joint |
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What is the ACTION of the Subscapularis?
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internally rotates the arm
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What nerve INNERVATES the Subscapularis?
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upper and lower subscapular
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What is the ORIGIN of the Subclavius?
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first rib
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What is the INSERTION of the Subclavius?
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inferior surface of clavicle
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What is the ACTION of the Subclavius?
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assists to stabilize the scapula
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What nerve INNERVATES the Subclavius?
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nerve to the subclavius
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What is the ORIGIN of the Pectoralis major?
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1. medial portion of clavicle
2. sternum at costal cartilages |
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What is the INSERTION of the Pectoralis major?
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lateral lip of the bicipital groove
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What is the ACTION of the Pectoralis major?
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1. adducts the arm
2. internally rotates the arm 3. flexes the shoulder (from an extended position) |
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What nerve INNERVATES the Pectoralis major?
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1. clavicular portion: lateral pectoral
2. sternal portion: medial pectoral |
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What is the ORIGIN of the Pectoralis minor?
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outer surface of ribs 3-5
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What is the INSERTION of the Pectoralis minor?
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coracoid process
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What is the ACTION of the Pectoralis minor?
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1. depresses the scapula
2. downwardly rotates the scapula |
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What nerve INNERVATES the Pectoralis minor?
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medial pectoral
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What is the ORIGIN of the Coracobrachialis?
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coracoid process
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What is the INSERTION of the Coracobrachialis?
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medial shaft of humerus at about its middle
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What is the ACTION of the Coracobrachialis?
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1. flexes shoulder
2. assists to adduct the humerus |
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What nerve INNERVATES the Coracobrachialis?
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musculocutaneous
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What is the ORIGIN of the Biceps brachii?
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1. long head: supraglenoid tubercle and glenohumeral labrum
2. short head: coracoid process |
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What is the INSERTION of the Biceps brachii?
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radial tuberosity
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What is the ACTION of the Biceps brachii?
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1. flexes the elbow (when supinated
2. supinates the forearm from neutral 3. stabilizes anterior aspect of shoulder 4. flexes shoulder (weak if at all) |
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What nerve INNERVATES the Biceps brachii?
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musculocutaneous
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What is the ORIGIN of the Brachialis?
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lower half of anterior humerus
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What is the INSERTION of the Brachialis?
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1. ulnar tuberosity
2. coronoid process of ulna slightly |
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What is the ACTION of the Brachialis?
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flexes the elbow
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What nerve INNERVATES the Brachialis?
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musculocutaneous
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What is the ORIGIN of the Triceps brachii?
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1. long head: infraglenoid tubercle
2. lateral head: upper half of the posterior humerus 3. medial head: lower 1/4th of posterior humerus |
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What is the INSERTION of the Triceps brachii?
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olecranon process
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What is the ACTION of the Triceps brachii?
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long head: extends the elbow, may assist in shoulder extension from a flexed position
lateral head: elbow extension medial head: elbow extension |
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What nerve INNERVATES the Triceps brachii?
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radial
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What is the ORIGIN of the Anconeus?
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lateral epicondyle of the humerus
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What is the INSERTION of the Anconeus?
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lateral surface of the olecranon process
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What is the ACTION of the Anconeus?
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1. elbow extension
2. supports the elbow when in full extension |
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What nerve INNERVATES the Anconeus?
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radial
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What is the ORIGIN of the Pronator Teres?
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1. humeral head: upper portion of medial epicondyle via the CFT (common flexor tendon)
2. ulnar head: coronoid process of ulna |
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What is the INSERTION of the Pronator Teres?
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pronator tuberosity of radius
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What is the ACTION of the Pronator Teres?
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1. pronates forearm
2. weakly flexes the elbow |
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What nerve INNERVATES the Pronator Teres?
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median
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What is the ORIGIN of the Flexor carpi radialis?
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medial epicondyle via the CFT (common flexor tendon)
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What is the INSERTION of the Flexor carpi radialis?
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base of 2nd and sometimes 3rd metacarpals
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What is the ACTION of the Flexor carpi radialis?
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1. flexes the wrist
2. radially deviates the wrist |
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What nerve INNERVATES the Flexor carpi radialis?
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median
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What is the ORIGIN of the Palmaris longus?
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medial epicondyle via the CFT (common flexor tendon)
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What is the INSERTION of the Palmaris longus?
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superficial portion of the palmar aponeurosis
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What is the ACTION of the Palmaris longus?
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flexes the wrist
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What nerve INNERVATES the Palmaris longus?
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median
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What is the ORIGIN of the Flexor carpi ulnaris?
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1. humeral head: medial epicondyle via the CFT
2. ulnar head: upper portion of the posterior ulna |
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What is the INSERTION of the Flexor carpi ulnaris?
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1. pisiform and hamate bones
2. base of the 5th metacarpal |
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What is the ACTION of the Flexor carpi ulnaris?
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1. flexes the wrist
2. ulnarly deviates the wrist |
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What nerve INNERVATES the Flexor carpi ulnaris?
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ulnar
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What is the ORIGIN of the Flexor digitorum superficialis?
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1. humeral-ulnar head: medial epicondyle via the CFT
2. radial head: oblique line of radius |
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What is the INSERTION of the Flexor digitorum superficialis?
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splits to both sides of the base of each middle phalanx of the 4 fingers
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What is the ACTION of the Flexor digitorum superficialis?
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flexes the proximal and middle IP joints
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What nerve INNERVATES the Flexor digitorum superficialis?
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median
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What is the ORIGIN of the Flexor digitorum profundus?
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anterior and medial surface of proximal 3/4 ulna
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What is the INSERTION of the Flexor digitorum profundus?
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distal phalanx of medial 4 digits (through the FDS tunnel)
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What is the ACTION of the Flexor digitorum profundus?
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flexes the distal IP joints and in so doing flexes the proximal and middle IP joints
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What nerve INNERVATES the Flexor digitorum profundus?
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medial portion: ulnar
lateral portion: median |
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What is the ORIGIN of the Flexor pollicis longus?
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middle of anterior radius and interosseous membrane (sometimes as high as the coronoid process of ulna)
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What is the INSERTION of the Flexor pollicis longus?
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palmar aspect of base of the distal phalanx of thumb
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What is the ACTION of the Flexor pollicis longus?
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flexes the distal phalanx of thumb
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What nerve INNERVATES the Flexor pollicis longus?
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median
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What is the ORIGIN of the Pronator quadratus?
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distal 1/4 anteromedial surface of ulna
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What is the INSERTION of the Pronator quadratus?
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distal 1/4 anterolateral surface of radius
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What is the ACTION of the Pronator quadratus?
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pronates the forearm and hand
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What nerve INNERVATES the Pronator quadratus?
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median
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