Upper Ex OINA Flashcards
Pectoralis Major ORIGIN
Clavicle, sternum, upper 6 costal cartilages
Pectoralis major INSERTION
Lateral lip of bicipital groove of humerus
Pectoralis major NERVE and Action
N: Medial and lateral pectoral nerves from brachial plexus
A: adducts arm and rotates it medially
Pectoralis minor O:
3rd, 4th, 5th ribs
Pectoralis minor I:
Coracoid process of scapula
Pectoralis minor N&A:
N: medial pectoral nerve from brachial plexus
A: depresses shoulder joint
Subclavius O:
First costal cartilage
Subclavius I:
Clavicle
Subclavius N:
Nerve to subclavius from upper trunk of brachial plexus
Serratus anterior O:
Upper eight ribs
Serratus anterior I:
Medial border and inferior angle of the scapula
Serratus anterior N&A:
N: Long thoracic nerve
A: rotates scapula
Trapezius O:
Occipital bone, ligamentum nuchae, spine of the C7, spines of all thoracic vertebra
Trapezius I:
Upper fibers of lateral third of clavicle, middle and lower fibers into acromion and spine of scapula
Trapezius N:
Spinal part of accessory nerve, C3, C4
Latissimus dorsi O:
L-umbar fascia
I-liac crest
T-hree/4 ribs lower
S-pines of lower 6 vertebra
I-nferior angle of scapula
Latissimus dorsi I:
Floor of bicipital groove of humerus
Latissimus dorsi N:
Thoracodorsal nerve
Levator scapulae O:
Transverse process of C1-C4
Levator scapulae I:
Medial border of scapula
Levator scapulae N:
C3, C4 and dorsal scapular nerve
Rhomboid minor O:
Ligamentum nuchae, spines of C7-T1
Rhomboid minor I:
Medial border of scapula
Rhomboid minor N:
dorsal scapular nerve
Rhomboid major O:
T2-T5
Rhomboid major I:
Medial border of scapula
Rhomboid major N:
Dorsal scapular nerve
Deltoid O:
Lateral third of clavicle, acromion, spine of scapula
Deltoid I:
Deltoid tuberosity of humerus
Deltoid N & A:
N: Axillary nerve
A: Abducts arm
Supraspinatus O:
Supraspinous fossa of scapula
Supraspinatus I:
Greater tubercle
Supraspinatus N:
Suprascapular nerve
Infraspinatus O:
Infraspinous fossa of scapula
Infraspinatus I:
Greater tuberosity of humerus; capsule of shoulder joint
Infraspinatus N:
Suprascapular nerve
Teres minor O:
Upper two thirds of lateral border of scapula
Teres minor I:
Greater tubercle
Teres minor N:
Axillary nerve
Teres major O:
Lower third of lateral border of scapula
Teres major I:
Medial lip of bicipital groove of humerus
Teres major N:
Lower subscapular nerve
Teres major A:
Medially rotates and adducts arm
Subscapularis O:
Subscapular fossa
Subscapularis I:
Lesser tuberosity of humerus
Subscapularis N:
Upper and lower subscapular nerves
Flexor carpi ulnaris
(humeral head, anterior) O:
Medial epicondyle of humerus
Flexor carpi ulnaris
(humeral head, anterior) (ulnar head, posterior) INSERTION:
[Ph5]
Pisiform bone, hook of hamate, base at 5th metacarpal bone
Flexor carpi ulnaris
(humeral head, anterior) (ulnar head, posterior) N & A:
N: Ulnar nerve
A: Flexes and adducts hand at wrist joint
Flexor carpi ulnaris
(Ulnar head, posterior) ORIGIN:
Medial aspect of olecranon process and posterior border of ulna
Flexor pollicis longus O:
Anterior surface of shaft of radius
Flexor pollicis longus I:
Distal phalanx of thumb
Flexor pollicis longus N:
Anterior interosseus branch of median nerve
Flexor pollicis longus A:
Flexes distal phalanx of thumb
Flexor digitorum profundus O:
Anteromedial surface of shaft of ulna
Flexor digitorum profundus I:
Distal phalanges of medial four fingers
Flexor digitorum profundus N:
Ulnar (medial half) and median (lateral half) nerves
Supinator O:
Lateral epicondyle of humerus
Supinator I:
Neck and shaft of radius
Supinator N:
Deep branch of radial nerve
Pronator quadratus O:
Anterior surface of shaft of ulna
Pronator quadratus I:
Anterior surface of shaft of radius
Pronator quadratus N:
Anterior interosseous branch of median nerve
Brachioradialis O:
Lateral supracondylar ridge of humerus
Brachioradialis I:
Base of styloid process of radius
Brachioradialis N:
Radial nerve
Extensor carpi radialis longus O:
Lateral supracondylar ridge of humerus
Extensor carpi radialis longus I:
Posterior surface of base of 2nd metacarpal bone
Extensor carpi radialis longus N:
Radial nerve
Extensor carpi radialis brevis
Extensor carpi ulnaris
Extensor digitorum
Extensor digiti minimi
Anconeus
Supinator
ORIGIN:
Lateral epicondyle of humerus
Extensor carpi radialis brevis I:
Base of metacarpal 3
Extensor carpi radialis brevis
Extensor carpi ulnaris
Extensor digitorum
Extensor digiti minimi
Abductor pollicis longus
Extensor pollicis brevis
Extensor pollicis longus
Extensor indicis
Deep branch of radial nerve
Extensor digitorum I:
Middle and distal phalanges of medial four fingers
Extensor digiti minimi I:
Extensor expansion of little finger
Extensor digitorum A:
Extends fingers and hands
Extensor digitorum minimi A:
Extends metacarpophalangeal joint of little finger
Anconeus I:
Lateral surface of olecranon process of ulna
Anconeus N&A:
N: Radial nerve
A: extends elbow joint
Abductor pollicis longus O:
Posterior surface of shaft of radius and ulna
Abductor pollicis longus I:
Base of 1st metacarpal bone
Abductor pollicis longus A:
Extends and abducts thumb
Extensor pollicis brevis O:
Posterior surface of shaft or radius
Extensor pollicis brevis I:
Base of proximal phalanx of thumb
Extensor pollicis brevis A:
Extends metacarpophalangeal joint of thumb
Extensor pollicis longus
Extensor indicis
ORIGIN:
Posterior surface of shaft of ulna
Extensor pollicis longus I:
Base of distal phalanx of thumb
Extensor indicis I:
Extensor expansion of index finger
Extensor indicis A:
Extends metacarpophalangeal joint of index finger
Palmaris brevis O:
Flexor retinaculum, palmar aponeurosis
Palmaris brevis I:
Skin of palm
Palmaris brevis N:
Superficial branch of ulnar nerve
Palmaris brevis A:
Corrugates skin to improve grip of palm
Opponens pollicis O:
Flexor retinaculum
Opponens pollicis I:
Shaft of metacarpal bone of thumb
Opponens pollicis Nerve supply:
Median nerve
Lumbricales O:
Tendons of flexor digitorum profundus [FDP]
Lumbricales I:
Extensor expansion of medial 4 fingers
Lumbricales N:
1st,2nd median nerve; 3rd,4th ulnar nerve
Lumbricales A:
Flexes metacarpophalangeal joints
Interossei palmares O:
Lateral and medial sides of metacarpals
Dorsal interossei O:
Adjacent sides of metacarpals
Dorsal interossei I:
Proximal phalanx of fingers 2-4
Palmar and dorsal interossei N:
Deep branch of ulnar nerve
Interossei palmares A:
Adduct fingers toward center of 3rd finger
Dorsal interossei A:
Abduct fingers from center of 3rd middle finger
Abductor pollicis brevis O:
Scaphoid, trapezium, flexor retinaculum
Flexor pollicis brevis O:
Flexor retinaculum
Adductor pollicis O:
Oblique head: 2nd,3rd metacarpal bones
Transverse head: 3rd metacarpal
Abductor pollicis brevis
Flexor pollicis brevis
Adductor pollicis
INSERTION:
Base of proximal phalanx of thumb
Abductor pollicis brevis
Flexor pollicis brevis
N:
Median nerve
Abductor digiti minimi O:
Hypothenar compartment
Pisiform bone
Abductor digiti minimi I:
Base of proximal phalanx of little finger
Opponens digiti minimi O:
Flexor retinaculum
Opponens digiti minimi I:
Medial border of 5th metacarpal bone
Abductor digiti minimi
Opponens digiti minimi
N:
Deep branch of ulnar nerve
Biceps brachii O: (long head, short head)
LH: Supraglenoid tubercle of scapula
SH: coracoid process of scapula
Biceps brachii (long head, short head) insertion
Tuberosity of radius and bicipital aponeurosis into deep fascia of forearm
Biceps brachii (long head, short head)
Coracobrachialis
Brachialis
Musculocutaneous nerve
Coracobrachialis O:
Coracoid process of scapula
Coracobrachialis I:
Medial aspect of shaft of humerus
Brachialis O:
Front lower half of humerus
Brachialis insertion:
Coronoid process of ulna
Triceps (long,lateral,medial head) O:
Long h.: infraglenoid tubercle of scapula
Lateral: upper half of posterior surface of shaft of humerus
Medial: lower half “”
Triceps I:
olecranon process of ulna
Triceps N:
Radial nerve
Flexor digitorum superficialis O:
Humeroulnar head: medial epicondyle of humerus; medial border of coronoid process of ulna
Radial head: oblique line on anterior surface of shaft of radius
Flexor digitorum superficialis I:
Middle phalanx of medial 4 fingers