Elbow/forearm/wrist/hand mm Flashcards
Flexor Carpi Radialis O/I
O:Common flexor tendon of med epicondyle
I: Bases of 2-3 metacarpals
Flexor Carpi Radialis action?
Flex and abducts wrist (radial deviation)
may assist elbow flexion
Flexor carpi ulnaris O/I
O:
Humeral head: Common flexor tendon of med epicondyle
Ulnar head: post surface of proximal 2/3 of ulna
I: Pisiform, hook of hamate and base of 5 MTC
Flexor carpi ulnaris action?
flex wrist
adduct wrist (unlar deviation)
assist elbow flexion
Flexor digitorum superficialis O/I?
O:Common flexor tendon on med epicondyle, sup 1/2 of ant radius
I: sides of middle phalanges, palmar surface of 2-5
flexor digitorum profundus o/i
O: ant and med surfaces of prox 3/4 ulna
I: base of distal thumb
flexor digitorum profundus action?
flex 1st digits phalanges
Brachioradialis o/I?
O: prox 2/3 of lat supracondylar ridge
I: styloid process of radius
brachioradialis action
flex elbow
assis pronate and supinate forearm
(drinking mm)
extensor carpi radialis longus o/i
O: distal 1/3 of lat supracondylar ridge of humerus
I: base of 2nd metacarpal
Extensor carpi radialis longus action?
extend wrist
abduct wrist
extensor carpi radialis brevis o/i
O: common extensor tendon from lat epicondyle
I:base of 3rd metacarpal
extensor carpi radialis brevis action?
extend wrist
abduct wrist
extensor digitorum O/I
O: common extensor tendon from lat epicondyle
I: base of middle/distal 2-5 phalanges
extensor digitorum action?
extend 2-5 fingers
assist extension of wrist
extensor carpi ulnaris o/i
O: common extensor tendon from lat epicondyle
I: base of 5th metacarpal
extensor carpi ulnaris action?
extends 5th digit
lumbrical’s o/i
O: surfaces of flexor digitorum profundus tendons
I: extensor aponeurosis on dorsal surface of phalanges
lumbricals action?
extends 2-5 fingers at IP joint
flex 2-5 fingers at MCP joint
Palmar interossei o/i
O: palmer surface of 2, 4, 5 metacarpals
I: base of prox phalanx of related finer and extensor aponeurosis
Palmer interossei action
PAD
adduct fingers to third
Dorsal interossei o/i
O: adjacent sides of metacarpals
I; base of prox phalanx of 2-4 fingers and extensor aponeurosis
dorsal interossei action?
DAB
abduct 2-4 MCP joints
Biceps Brachii o/i
O:
SH: Coracoid process
LH: supraglenoid tubercle
I: Radia tuberosity
Bicep Brachii action?
Flex elbow
supinate forearm
can flex shoulder
Brachialis o/I?
O: distal half of ant humerus
I: ulnar tuberosity, coronoid process
brachialis action?
flex elbow
Brachioradialis o/I?
O: prox 2/3 of lat supracondylar ridge
I: Radial styloid process
Brachioradialis action?
Flexes elbow
supines and pronates arm
(drinking mm)
Triceps brachii o/i?
O:
LH: Infraglehoid tubercle
LATH: Post surface of Prox half of humerus
MEDH: Post surface distal half of humerus
I: Olecranon process
Triceps Brachii action
Extend elbow
Extend shoulder
can adduct shoulder
Supinator o/i
O: Lat epicondyle, RCL, annular lig, supinator crest of ulna
I: Ant Lat surface of prox 1/3 radial shaft
Supinator action?
supinates forearm
Pronator teres o/i?
O: Med epicondyle of common tendon, coronoid process
I: Middle of lat surface of radius
Pronator teres action?
Pronates forearm
can assist elbow flexion
Pronator Qaudratus o/I?
O: med border of distal ulna
I: lat border of distal radius
Pronator Qaudratus action?
Pronate forearm
