Upper Body Origin/insertion Flashcards
Trapezius (shoulder girdle)
O: occipital protuberance, ligaments nuchae, spinous process of C7-T12
I: spine of the scapula, acromion, lateral 1/3 of clavicle
levator scapulae (shoulder girdle)
O: transverse process of C1-4
I: superior angle proximal medial scapula
Rhomboid minor and major (shoulder girdle)
O: spinous process of C7, T1-5
I: vertebral border of the scapula
Pectoralis minor (shoulder girdle)
O: anterior ribs 3-5
I: Coracoid process of the scapula
Serratus anterior (shoulder girdle)
O: anterior lateral ribs 1-8
I: medial border of anterior surface of the scapula
Deltoid (glenohumeral joint)
O: lateral 1/3 of clavicle, acromion, spine of scapula
I: deltoid tuberosity
Pectoralis major (glenohumeral joint)
O: Medial 2/3 of clavicle, sternum, costal cartilage of ribs 1-6
I: lateral lip of the intertubercular (bicep ital) groove
Latissimus dorsi (glenohumeral joint)
O: spinous process of T6-T12, lumbar and sacral spinous processes, posterior iliac crest, thoracolumbar fascia
I: medial lip and floor of bicepital groove
Teres major (glenohumeral joint)
O: inferior angle of scapula
I: medial lip of intertubercular (bicepital) groove
Subclavius (glenohumeral joint)
O: 1st rib
I: undersurface of the clavicle
Supraspinatus (glenohumeral joint)
O: supraspinatus fossa
I: greater tubercle of humerus
Infraspinatus (glenohumeral joint)
O: infraspinatus fossa
I: greater tubercle of the humerus (below supraspinatus)
Teres minor (glenohumeral joint)
O: upper 2/3 of axillary border of the scapula
I: greater tubercle of the humerus (below infraspinatus)
Subscapularis (glenohumeral joint)
O: subscapular fossa
I: lesser tubercle of the humerus
Biceps brachii (upper arm)
SHORT
O: tip of the coracoid process
LONG
O: supraglenoid tubercle
I: radial tuberosity
Brachialis (upper arm)
O: lower 1/2 of anterior humerus
I: tuberosity of the ulna
Triceps brachii (Upper arm)
Long O: infraglenoid tubercle
Lateral O: posterior humerus above radial groove
Medial O: posterior humerus below radial groove
I: olecranon process
Anconeus (upper arm)
O: lateral epicondyle of the humerus
I: lateral olecranon process
Coracobrachialis
O: coracoid process
I: middle 1/3 of the medial humerus
Brachioradialis
O: Lateral supracondylar ridge
I: lateral distal radius
Pronator teres (lateral and medial heads)
Lateral head O: medial epicondyle of the humerus
Medial head O: Coronado process
I: lateral shaft of the radius
Flexor carpi radialis
O: common flexor tendon, medial epicondyle of the humerus
I: base of metacarpals 2 and 3
Muscles that originate with/on common flexor tendon
Flexor carpi radialis
Palmaris longus
Flexor carpi ulnaris
Flexor digitorum superficialis
Palmaris longus
O: Common flexor tendon, medial epicondyle of the humerus
I: palmar aponeurosis
Flexor carpi ulnaris
O: common flexor tendon, medial epicondyle of the humerus, posterior surface/olecranon of the ulna
I: pisiform, hook of hamate, base of MC 5
Flexor digitorum superficialis
O: common flexor tendon, medial epicondyle of the humerus, proximal radius
I: middle phalanx of fingers 2-5
Flexor digitorum profundus
O: anterior and medial ulna
I: distal phalanx of fingers 2-5
Flexor pollicis longus
O: anterior radius and interosseous membrane
I: distal phalanx of the thumb
Pronator quadratus
O: distal anterior ulna
I: distal anterior radius
Extensor carpi radialis longus
O: Lateral epicondyle of the humerus/ common extensor tendon
I: base of the second metacarpal
Muscles that originate from the common EXTENSOR tendon (5)
Extensor carpi radialis longus
Extensor carpi radialis brevis
Extensor carpi ulnaris
Extensor digiti minimi
Extensor digitorum
** all Superficial forearm extensors
Extensor carpi radialis brevis
O: lateral epicondyle of the humerus / common extensor tendon
I: base of the third metacarpal
Extensor carpi ulnaris
O: common extensor tendon, proximal posterior ulna
I: base of the fifth metacarpal
Extensor digiti minimi
O: common extensor tendon
I: middle phalanx of fifth finger and distal phalanx. Via the extensor digitorum tendon
Extensor digitorum
O: common extensor tendon
I: middle and distal phalanx of fingers 2-5, dorsal extensor hood
