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39 Cards in this Set
- Front
- Back
- 3rd side (hint)
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AOI |
Action Origin Insertion |
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Muscles crossing shoulder joint |
*Pectoralis Major *Latissimus dorsi *Deltoid |
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*Deltoid -forms rounded portion of shoulder
A: arm abduction; flexion & medial rotation of humerus; extension & lateral rotation of arm O: lateral 3rd of clavicle; acromion & spine of scapula I: deltoid tuberosity of humerus |
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*Pectoralis Major -Bulk of chest in males -Under breast in females
A: arm flexion; rotates arm medially; adducts arm O: sternal end of clavicle; sternum; cartilage of ribs 1-6 I: intertubercular sulcus & greater tubercle of humerus |
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*Latissimus dorsi -broadest muscle of the back
A: arm extension; adducts arm; medially rotates arm at shouldar O: spines of T7-L5; ribs 9-12; iliac crest I: intertubercular sulcus of humerus |
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*Trapezius -known as traps
A: stabilizes, raises, retracts & rotates scapula O: occipital bone; spinous process of C7 & all thoracic vertebre (12) I: acromion & spine of scapula; lateral 3rd of clavicle |
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Anterior thorax |
*Pectoralis minor |
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*Pectoralis minor -active during forced inspiration
A: draws scapula forward & downward O: anterior surfaces of ribs 3-5 I: caracoid process of scapula |
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Anterior & lateral abdominal wall |
*External oblique |
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*External obliques -important in straining (lifting, child birth) -respiration
A: flexes vertebral column; compress abdominal wall; rotating trunk & flexing laterally O: outer surface of ribs 5-12 I: linea alba; pubic crest; iliac crest |
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Anterior forearm |
*Brachioradialis |
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*Brachioradialis -1 in 4 innervated by radial nerve A: forearm flexion; stabilizes elbow during rapid flexion & extension O: lateral supracondylar ridge at distal end of humerus I: styloid process of radius |
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Anterior Superficial Forearm |
*Pronator teres *Flexor carpi radialis *Palmaris longus *Flexor carpi ulnaris |
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*Pronator teres -helps serve to pronate arm (in anatomical position palm face posterior)
A: pronates forearm; weak flexor of elbow O: medial epicondyle of humerus; coronoid process of ulna I: lateral radius |
Moves palm somewhere |
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Flexor carpi radialis
A: powerful flexor of wrist; abducts hand O: medial epicondyle of humerus I: base of 2nd & 3rd metacarpals |
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*Palmaris longus
A: tenses skin & fascia of palm during hand movements O: medial epicondyle of humerus I: palmar aponeurosis |
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*Flexor carpi ulnaris
A: wrist flexor; adducts hand O: medial epicondyle of humerus; olecranon process & posterior surface of ulna I: pisiform; hamate; 5th metacarpal |
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*Extensor carpi radialis longus -1 of 5 main to control wrist
A: extends & abducts wrist I: lateral supracondylar ridge of humerus O: base of 2nd metacarpal |
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*Extensor carpi radialis brevis
A: extends & abducts wrist O: lateral epicondyle of humerus I: base of 3rd metacarpal |
Posterior view |
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*Extensor digitorum
A: extension of fingers O: lateral epicondyle of humerus I: distal phalanges of fingers 2-5 |
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*Extensor carpi ulnaris
A: extends & abducts wrist I: lateral epicondyle of humerus; posterior border of ulna O: base of 5th metacarpal |
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Anterior Deep Forearm |
*Flexor pollicis longus *Flexor digitorum Profundus |
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*Flexor pollicis longus
A: flexes distal phalanx of thumb O: anterior surface of radius I: distal phalanx of thumb |
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*Flexor digitorum profundus
A: flexes distal interphalangeal joints; wrist flexion O: coronoid process; anteromedial surface of ulna I: distal phalanges of fingers 2-5 |
It is "profound" |
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Posterior Deep Forearm |
*Abductor pollicis longus *Extensor pollicis longus *Supinator |
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*Abductor pollicis longus
A: abducts & extends thumb O: posterior surface of radius & ulna I: lateral base of thumb's proximal phalanx |
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*Extensor pollicis brevis
A: extends thumb O: dorsal shaft of radius & ulna I: base of distal phalanx of thumb |
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*Supinator
A: assists biceps brachii to supinate forearm O: lateral epicondyle; proximal ulna I: proximal end of radius |
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Thenar of thumb |
*Abductor pollicis brevis *Flexor pollicis brevis *Opponens pollicis *Adductor pollicis |
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*Abductor pollicis brevis
A: abducts thumb O: flexor retinaculum I: lateral base of thumb's proximal phalanx |
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*Flexor pollicis brevis
A: flexes thumb O: flexor retinaculum I: lateral side of base of proximal phalanx of thumb |
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*Opponens pollicis
A: opposition of thumb O: flexor retinaculum; trapezium I: anterior side of 1st metacarpal |
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*Adductor pollicis
A: adducts & helps to oppose thumb O: capitate & base of metacarpals 2-4 I: medial side of base of proximal phalanx of thumb |
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Hypothenar of Thumb |
*Opponens digiti minimi |
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*Opponens digiti minimi
A: opposition of 5th metacarpal O: flexor retinaculum; hamate I: medial side of 5th metacarpal |
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Midpalmer |
*Lumbricals of hand *Palmar interossei *Dorsal interossei |
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*Lumbricals of hand A: flex fingers at metacarpophalangeal joints; extends fingers at interphalangeal joints O: lateral side of flexor digitorium profundus I: proximal phalanx of fingers 2-5 |
Next to flexor digitorum profundus |
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*Palmer interossei A: adducts fingers O: midaxis of all metacarpals except 3rd I: extensor expansion over 1st phalange of each finger |
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*Dorsal interossei A: abducts fingers O: side of metacarpals I: extensor expansion over proximal phalanx of fingers 2-4 |
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