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28 Cards in this Set
- Front
- Back
Trapezius
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O: Occipital bone, ligamentum nuchae, spine of C7, spines of T1-12.
Ins: Lat 1/3 of clavicle, acromion, spine of scapula. Inn: Spinal part of accessory n XI Funct: Elevation, medial movement and inf. movement of scapula. |
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Latissimus dorsi
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O: Iliac crest, lumbar fascia, spines of T6-12, lower 3-4 ribs, inf. scapula.
I: Intertubercular sulcus (bicipital groove) of humerus. Inn: Thoracodorsal n. (C6-8). Func: Ext., adduct., med. rotation of arm. |
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Levator scapulae
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O: Transv. processes of C1-4.
I: Med. border of scapula (sup. part). Inn: Dorsal scapular n. and C3 + C4. Func: Elevates medial part of scapula. |
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Rhomboid minor
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O: Ligamentum nuchae, spines of C7 and T1.
I: Medial border of scapula (middle part). Inn: Dorsal scapular n. (C4-5). Func: Elevates med. border of scapula superiorly and medially. |
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Rhomboid major
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O: Spines of T2-5.
I: Medial border of scapula (inf. part). Inn: Dorsal scapular n. (C4-5) Func: Elevates medial border of scapula superiorly and medially. |
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Pectoralis major
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O: Clavicle, sternum, and upper six costal cartilages.
I: Crest of greater tubercle. Inn: Med. and lat. pectoral nerves (C5-T1). Func: Adducts and medially rotates arm. Clavicular fibers flex arm. |
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Pectoralis minor
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O: 3-4th ribs.
I: Coracoid process of scapula. Inn: Medial pectoral nerve (C6-8). Func: Depresses shoulder. |
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Subclavius
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O: First costal cart.
I: Clavicle. Inn: Nerve to subclavius (C5-6). Func: Depresses clavicle and stabilizes it during shoulder movement. |
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Serratus anterior
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O: Upper eight ribs.
I: Medial border and inf. angle of scap. Inn: Long thoracic nerve (C5-7). Func: Lat. rotates and protracts scapula. |
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Deltoid
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O: Lateral third clavicle, acromion, spine of scapula.
I: Deltoid tuberosity of humerus. Inn: Axillary nerve (C5-6). Func: Abducts arm, flexion and medial rotation, extension and lateral rotation of arm. |
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Supraspinatus
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O: Supraspinous fossa of scapula.
I: Greater tuberosity of humerus. Inn: Suprascapular n. (C4-6). Func: Abducts arm and stabilizes shoulder joint. |
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Infraspinatus
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O: Infraspinous fossa of scapula.
I: Greater tuberosity of humerus. Inn: Suprascapular n. (C4-C6). Func: Lateral rotation of arm and stabilizes shoulder joint. |
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Teres major
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O: Lower third of lateral border of scap.
I: Crest of lesser tubercle. Inn: Lower subscapular n. (C6-7). Func: Medially rotates and adducts arm and stabilizes shoulder joint. |
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Teres minor
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O: Upper 2/3 of lat. border of scapula.
I: Greater tuberosity of humerus. Inn: Axillary nerve (C4-C6). Func: Laterally rotates and stabilizes shoulder joint. |
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Subscapularis
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O: Subscapular fossa.
I: Lesser tuberosity of humerus. Inn: Upper and lower subscapular nerves (C5-7). Func: Medial rotation of arm and stability of shoulder joint. |
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Rotator cuff muscles
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SITS muscles: Subscapularis, supraspinatus, infraspinatus, teres minor.
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Biceps brahii
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O (long head): Supraglenoid tubercle of scapula.
O (short head): Coracoid process of scapula. I: Tuberosity of radius and bicipital aponeurosis. Inn: Musculocutaneous n. (C5-6). Func: Supinator of forearm and flexor of elbow joint, weak flexor of shoulder joint. |
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Coracobracialis
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O: Coracoid process of scapula.
I: Medial aspect of shaft of humerus. Inn: Musculocutaneous n. (C5-7). Func: Flexes arm and weak adductor. |
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Brachialis
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O: Front of lower half of humerus.
I: Coronoid process of ulna. Inn: Musculocutaneous n. (C5-6). Func: Flexor of elbow joint. |
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Triceps brachii
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O:
Long head - Infraglenoid tubercle. Lat. head - Upper half of post. surface of humerus. Med. head - Lower half of post. surface of humerus. I: Olecranon of ulna. Inn: Radial n. (C6-8) Func: Ext. of elbow joint. |
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Flexor carpi ulnaris
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O:
Humeral head - medial epicondyle of humerus. Ulnar head - olecranon and post. border of ulna. I: Pisiform bone and via ligaments, hamate and base of metacarpal V. Inn: Ulnar n. (C7-T1). Func: Flexion and adduction at wrist joint. |
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Palmaris longus
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O: Medial epicondyle of humerus.
I: Palmar aponeurosis of hand. Inn: Median n. (C7-8). Func: Flexes wrist joint. |
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Flexor carpi radialis
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O: Medial epicondyle of humerus.
I: Base of metacarpals II and III. Inn: Median n. (C6-7). Func: Flexes and abducts the wrist. |
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Pronator teres
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O:
Humeral head - medial epicondle snd supraepicondylar ridge. Ulnar head - medial side of coronoid process. |
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Flexor digitorum superficialis
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O:
Humero-ulnar head - medial epicondyle and marigin of coronoid process. Radial head - oblique line of radius. I: four tendons that attach to middle phalanges of digits II-V. Inn: Median n. (C8-T1). Func: Flexes proximal interphalangeal joints of digits II-V. Can also flex metacarpophalangeal joints of the same fingers and wrist. |
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Flexor digitorum profundus
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O: Ant. and med. surfaces of ulna and ant. med. half of interosseous membrane.
I: Four tendons that attach to distal phalanges II-V. Inn: Lat. half - median n. Med. half - ulnar n. (C8-T1). Func: Fexes dist interphalangeal joints of digits II-V. Also metacarpophalangeal joints of the same fingers and wrist joint. |
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Flexor pollicis longus
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O: Ant. surface of radius and radial half of interosseous membr.
I: Base of distal phalanx of thumb. Inn: Median n. (C7-8). Func: Flexes interphalangeal joint of thumb. Can also flex metacarpophalangeal joint of thumb. |
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Pronator quadratus
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O: Linear ridge ond distal ant. surface of ulna.
I: Distal ant. surface of radius. Inn: Median n. (ant. interosseous n. C7-8) Func: Pronation. |