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28 Cards in this Set
- Front
- Back
Trapezius
Origin: occipital bone, ligamentum nuchae & spinous processes of thoracic vertebrae Insertion: clavicle and scapula (acromion and scapular spine) Action: elevate, retract, depress, or rotate scapula upward and/or elevate clavicle; extend neck |
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Rhomboideus Minor
Origin: spinous process of vertebrae C7-T1 Insertion: vertebral border of scapula Action: adducts & performs downward rotation of scapula |
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Rhomboideus Major
Origin: spinous process of superior thoracic vertebrae Insertion: vertebral border of scapula from spine to inferior angle Action: adducts and downward rotation of scapula |
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Levator Scapulae
Origin: transverse precesses of C1-C4 vertebrae Insertion: vertebral border of scapula near superior angle Action: elevates scapula |
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Serratus Anterior
Origin: anterior and superior margins of ribs 1-8 or 1-9 Insertion: anterior surface of vertebral border of scapula Action: protracts shoulder: rotates scapula so glenoid cavity moves upward rotation |
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Pectoralis Minor
Origin: anterior surfaces and superior margins of ribs 3-5 Insertion: coracoid process of scapula Action: depresses & protracts shoulder, rotates scapula (glenoid cavity rotates downward), elevates ribs |
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Supraspinatus
Origin: supraspinous fossa of scapula Insertion: greater tuberacle of humerus Action: abduction at the shoulder |
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Infraspinatus
Origin: infraspinous fossa of scapula Insertion: greater tubercle of humerus Action: lateral rotation at shoulder |
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Deltoid
Origin: clavicle and scapula (acromion and adjacent scapular spine) Insertion: deltoid tuberosity of humerus Action: abducts shoulder, flexion and extension, medial and lateral rotation of humerus |
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Teres Minor
Origin: lateral border of scapula Insertion: greater tubercle of humerus Action: lateral rotation at shoulder |
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Origin: inferior angle of scapula
Teres Major Insertion: medial lip of intertubercular groove of humerus Action: extension, adduction & medial rotation at shoulder |
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Subscapularis
Origin: subscapular fossa of scapula Insertion: lesser tubercle of humerus Action: medial rotation at shoulder |
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Pectoralis Major
Origin: cartilages of ribs 2-6, gladiolus & inferior, medial portion of clavicle Insertion: crest of greater tubercle & lateral lip of intertubercular groove of humerus Action: flexion, adduction & medial rotation at shoulder |
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Latissimus Dorsi
Origin: spinous process of inferior T and all L vertebrae, ribs 8-12, and lumbodorsal fascia Insertion: floor of intertubercular groove of the humerus Action: extension, adduction, and medial rotation at shoulder |
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Coracobrachialis
Origin: coracoid process Insertion: medial margin of shaft of humerus Action: adduction and flexion at shoulder |
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Triceps Brachii (lateral head, long head, medial head)
Origin: (Lateral) Superior, lateral margin of humerus:(Long) Infraglenoid tubercle of scapula;(Medial) Posterior surface of humerus, inferior to radial groove nsertion: Olecranon of ulna Action: (Lateral) extension at elbow;(Long) extension at elbow, extension & aduction at shoulder;(Medial) extension at elbow |
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Brachialis
Origin: anterior, distal surface of humerus Insertion: ulnar tuberosity Action: flexion at elbow |
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Brachioradialis
Origin: ridge superior to lateral epicondyle of humerus Insertion: lateral aspect of styloid process of radius Action: flexion at elbow |
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Pronator Teres
Origin: medial epicondyle of humerus & coronoid process of ulna Insertion: middle of lateral surface of radius Action: pronates forearm and hand by medial rotation of radius at radioulnar joints & flexion at elbow |
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Flexor Carpi Radialis
Origin: medial epicondyle of humerus Insertion: bases of 2nd and 3rd metacarpal bones Action: flexion and abduction at wrist |
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Flexor Carpi Ulnaris
Origin: medial epicondyle of humerus; adjacent medial surface of olecranon and anteromedial surface of ulna Insertion: pisiform bone, hamate bone, and base of 5th metacarpal bone Action: flexion and adduction at wrist |
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Extensor Carpi Ulnaris
Origin: lateral epicondyle of humerus; adjacent dorsal surface of ulna Insertion: base of 5th metacarpal bone Action: extension and adduction at wrist |
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Extensor Carpi Radialis Brevis
Origin: lateral epicondyle of humerus Insertion: base of 3rd metacarpal bone Action: extension and abduction at wrist |
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Extensor Carpi Radialis Longus
Origin: lateral supracondylar ridge of humerus Insertion: base of 2nd metacarpal bone Action: extension an abduction at wrist |
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Supinator
Origin: lateral epicondyle of humerus and ridge near radial notch of ulna Insertion: anterolateral surface of radius distal to the radial tuberosity Action: supinates forearm and hand by lateral rotation of radius at radioulnar joints |
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Biceps Brachii
Origin: (short head) from coracoid process;(long head) from supraglenoid tubercle (scapula) Insertion: radial tuberosity Action: flexion at elbow and shoulder; supination |
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Palmaris Longus
Origin: medial epicondyle of humerus Insertion: palmar aponeurosis and flexor retinaculum Action: flexion at wrist |
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Extensor Digitorum
Origin: lateral epicondyle of humerus Insertion: posterior surfaces of phalanges, digits 2-5 Action: extension at finger joints and wrist |
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