arm AOIN Flashcards
biceps brachii
A: flex elbow, supinate forearm, flex shoulderO: short head - carocoid process of scapula
: long head - supraglenoid tubercle of scapula
I: tuberosity of radius and aponeurosis of biceps brachii
N: musculocutaneous C5,6
Triceps Brachii
A: all heads - extend the elbow
: long head - extend and adduct the shoulder
O: long head - infraglenoid tubercle
: lateral head - posterior surface of proximal half og humerus
: medial head - posterior surface of distal half of humerus
I: olecranon process of ulna
N: radial C6,7,8,T1
Coracobrachialis
A: flex and adduct the shoulder
O: coracoid process
I: medial surface of scapula
N: musculocutaneous C6,7
Brachialis
A: flex the elbow
O: distal half og the anterior surface of the humerus
I: tuberosity and coronoid process of ulna
N: musculocutaneous, small branch from radial C5,6
Anconeus
A: extend the elbow
O: lateral epicondyle of humerus
I: olecranon process and posterior, proximal surface of ulna
N: radial C7,8
Pronator Teres
A: weak flexion at elbow, pronation of forearmO: humeral head - medial epicondyle of humerus
: ulnar head - coronoid process of ulna
I: lateral surface of radius (distal to supinator ins)
N: median nerve C6,7
Flexor Digitorum Superficialis
A: flexion of wrist, MCP and PIP of 2-5O: humero-ulnar head - medial epicondyle and coronoid process
: radial head - anterior border of radius distal to radial tuberosity
N: median nerve C8,T1
Flexor Carpi Radialis
A: flexion and abduction (radial deviation) of hand
O: medial epicondyle
I: base of second MC
N: median nerve C6,7
Flexor Carpi Ulnaris
A: flex and adduct (ulnar deviation) the handO: humeral head - medial epicondyle
: ulnar head - olecranon
I:pisiform, hook of hamate, base of 5th MC
N: ulnar nerve C8,T1
Palmaris Longus
A: flex the wrist and tightens palmar aponeurosis for gripping
O: medial epicondyle
I: palmar aponeurosis
N: median nerve C7,8
Flexor Digitorum Profundus
A: flex the wrist, MCP, PIP and DIP of 2-5
O: proximal 2/3 of flexor surface of ulna and adjacent interosseous membrane
I: palmar surface of distal phalanges of 2-5
N: anterior interosseous branch of median nerve (2-3 digits) C8,T1, ulnar nerve (4-5 digits) C8,T1
Flexor Pollicis Longus
A: flex and radial deviate the wrist, oppose CMC of the thumb, flex MCP and IP of the thumb
O: mid anterior surface of the radius and adjacent interosseous membrane
I: palmar surface of distal phalanx of the thumb
N: anterior interosseous branch of median nerve C8,T1
Pronator Quadratus
A: pronates hand, stabilizes distal RUJ
O: distal 1/4 of the anterior surface of the ulna
I: distal 1/4 of the anterior surface of the radius
N: median nerve C8,T1
Brachioradialis
A: flex the elbow, semipronate the forearm
O: lateral surface of distal humerus, lateral IM septum
I: styloid process of radius
N: radial nerve C5,6
Extensor Carpi Radialis Longus
A: dorsal extension and radial deviation of the wrist
O: lateral supracondylar ridge, lateral IM septum
I: dorsal base of the second MC
N: radial nerve C6,7
Extensor Carpi Radialis Brevis
A: dorsal extension and radial deviation of the wrist
O: lateral epicondyle of humerus
I: dorsal base of the 3rd MC
N: radial nerve C7,8
Extensor Digitorum
A: extend wrist, extension and abduction of MCP, PIP, DIP for 2-5
O: common head (lateral epicondyle)
I: dorsal digital expansion of the fifth digit
N: radial nerve C7,8
Extensor Carpi Ulnaris
A: extension and ulnar deviation of the wrist
O: common head
I: base of the 5th MC
N: radial nerve C7,8
Supinator
A: supination of RUJ
O: olecranon, lateral epicondyle, RCL, anular ligament
I: radius between radial tuberosity and pronator teres
N: radial nerve C7,8
Abductor Pollicis Longus
A: radial deviation of the wrist, abduction of the CMC of the thumb
O: dorsal surfaces of radius and ulna, interossuous membrane
I: base of 1st MC
N: radial nerve C7,8
Extensor Pollicis Brevis
A: radial deviation of hand, extension of CMC and MCP of the thumb
O: posterior surface of radius and IM
I: base of proximal phalanx of the thumb
N: radial nerve C7,8
Extensor Pollicis Longus
A: extension and radial deviation of the wrist, adduction of CMC of thumb, extension of MCP and IP of thumb
O: posterior surface of ulna and IM
I: base of distal phalanx of the thumb
N: radial nerve C7,8
Extensor Indicis
A: extend the wrist, extend the MCP, PIP, DIP of second digit
O: posterior surface of ulna and IM
I: posterior digital expansion of second digit
N: radial nerve C7,8
