muscles Flashcards
pec major
prox: anterior maubrium and anterior surface of sternum/ anterior coastal cartilages 1-6/ ,medical 1/2 of anterior clavicle
dist: Lateraal lip of intertroubercular groove
actions: shoulder flexion, adduction, medial rotation
pec minor
prox: anterior surface of ribs 3-5
distal: coracoid process
action: scapula protraction & medial rotation
serrates anterior
prox: anterior surface of ribs 1-8
distal: medial boarder and inferior angle of scapula
action: scapula upward rotation and protraction
latissimus dorsi
prox: spinous process T6-S5, iliac crest, ribs 9-12
dist: floor of the intertroubercluar groove
action: shoulder adduction, extension, medial rotation
trapezius
prox: external occipital protuberance, superior nuchae line, ligaments nuchal, acromion of scapula, spinous process c7-t12
dist: lateral 1/3 of clavicle, acromion process, medial end of spine of scapula
rhomboid major
prox: spinous process t2-t5
distal: medial boarder
action: scapula downward rotation and retraction
rhomboid minor
prox: spinous process tc7-t1
distal: medial boarder
action: scapula downward rotation and retraction
levitator scapulae
prox: transverse process of C1-C3
distal: medial boarder
action: scapula downward rotation and elevation, neck extension
deltoid
prox: lateral 1/3 of clavicle, acromion process, spine of scapula
dist: deltoid tuberosity on humerus
action: shoulder abduction, flexion, extension,med and lat rot
teres major
prox: posterior surface of scapula near inferior angle
dist: medial lip of intertroubucular groove
action: shoulder adduction and med rot
suprapinous
prox: supraspinous fossa of scapula
dist: greater tubercle & shoulder joint capsule
action: shoulder abduction
infraspinatus
prox: infraspionous fossa
dist: greater tubercle & shoulder joint capsule
action: lateral rotation
teres minor
prox: lateral boarder of scapula
dist: greater tubercle & shoulder joint capsule
action: lat rotation
subscapularis
prox subscapular fossa
dist lesser tubercle and shoulder joint capsule
action med rot and add
biceps brachii
prox: coracoid process, supraglenoid tubercle, superior part of glenoid labrum
dist: radial tuberocity & deep facia of ulnar side of forearm via bicipital aponeurosis
action: shoulder flexion, elbow flexion, forum supination
brachiallis
prox: distal 2/3 of humerus
distal: ulnar tuberosity and coronoid process
action elbow flexion
coracobrachilais
prox: coracoid process
dist: middle 1/3 of medial shaft of humerus
action: shoulder flexion & horizontal adduction
triceps brachii
prox: infraglenoid tubercle, inferior part of gelling labrum, posterior shaft to L and M to spiral groove
distal: olecranon process and posterior elbow joint capsule
action: shoulder and elbow extension shoulder adduction
printer tesers
prox: lateral SPCR, epicondyle and medial surface of proximal ulna
dist: impression of pronator testes of lateral mineshaft of radius
action: forearm pronation, elbow flexion
fCR
prox: comon flex origin on medial epicondyle
dist: base of MT 2 &3
action: wrist flexion and abduction
palmaris longus
prox: comon flex origin on medial epicondyle
dist: flexor ret and palar appenosis
action: wrist flexion
FCU
prox: comon flex origin on medial epicondyle, olecranon process, prox post 2/3 of ulna
dist: hook of hamate and base of 5 MT via psiohamate ligament
action:wrist flexion & adduction/ weak elbow flexor
Flexor digitorum superficialis
prox: common flexor origin on medial epicondyle of humerus, ulnar collateral ligament, coronoid process of ulna
dist: bases of middle phalanges of
digits 2-5
action: wrist flexion and hand digit flexion
FDP
prox: coronoid process of ulna, proximal 3/4 ulna, middle 1/3 interosseous membrane
dist: bases of distal phalanges of
digits 2-5
action: wrist flexion and hand digit flexion
FPL
prox: anterior surface of radius, adjacent interosseous membrane
dist: base of distal phalanx of thumb
action: thumb and wrist flexion
pronator quadratura
prox: distal 1/4 anterior ulna
dist: distal 1/4 anterior radius
action: forearm pronation
brachioradialis
prox: lateral supracondylar ridge of
humerus
distal: distal radius just proximal to the
styloid process
action: forearm supination and elbow flexion
ECRL
prox: lateral SPCR
dist: base of MT 2
action: wrist extension and abduction
ECRB
prox: common extensor tendon from
lateral epicondyle of humerus
dist: base of MT 3
action: wrist extension and abduction
extensor digitorum
prox: common extensor tendon on
lateral epicondyle of humerus
dist: via extensor aponeurosis
(dorsal digital expansion) to
bases of middle and distal
phalanges of digits 2-5
action: wrist and digit flexion
extensor digitorum minimi
pox: common extensor tendon on
lateral epicondyle of humerus
dist: dorsal digital expansion of digit
5
action: extension of visit 5
ECU
prox: common extensor tendon on
lateral epicondyle of humerus, posterior border of ulna
dist: base of metacarpal 5
action: digit extension and wrist adduction
extensor polices longus
prox: proximal posterior ulna, middle 1/3 posterior radius
distal: base of distal phalanx of thumb
action: thumb extension
extensor polices brevis
prix: middle part of posterior radius, adjacent interosseous membrane
dist: base of proximal phalanx of
thumb
action: thumb extension
extensor indicies
prox: distal posterior ulna, adjacent interosseous membrane
dist: dorsal digital expansion of digit
2
action: extension of digit 2
anconeous
prox: ateral epicondyle of humerus, posterior capsule of elbow joint
dist: proximal 1/4 posterior ulna, lateral surface of olecranon
process of ulna
action: elbow extension
supinator
prox: lateral epicondyle of humerus, supinator crest and fossa on ulna, radial collateral and annular ligaments
dist: posterior, lateral & anterior
aspects of proximal radius
action: forearm supination
abductor polices brevis
prox: flexor retinaculum, tubercles of scaphoid and trapezium
dist: base of proximal phalanx of
thumb
action: thumb abduction
flexor polices brevis
prox: flexor retinaculum, distal row of carpal bones
dist: base of proximal phalanx of
thumb
action: thumb flexion
opponens pollicus
prox: flexor retinaculum, tubercle of trapezium
dist: anterolateral surface of shaft of
metacarpal 1
action: opposition of thumb
abductor digiti minimi
prox: pisiform, tendon of flexor carpi ulnaris
dist: dorsal digital expansion of digit
5, proximal phalanx of digit 5
action: abduction of 5 digit
flexor digiti minimi
prox: hook of hamate
dist: base of proximal phalanx of
digit 5
action: flexion of 5 digit
Opponens digit minimi
prox: hook of hamate, flexor retinaculum
dist: medial surface of shaft of
metacarpal 5
action: opposition of 5th digit
adductor polices
prox: bases of metacarpals 2-4, shaft of metacarpal 3, trapezoid and capitate
dist: base of proximal phalanx of
thumb
action: thumb adduction
lumbricals
prox:tendons of flexor digitorum
profundus
dist: via lateral side of dorsal digital
expansion (extensor
aponeurosis) to bases of distal
phalanges of digits 2-5
dorsal interossei
prox: adjacent sides of metacarpals
of digits 1-5
dist: dorsal digital expansion of
digits 2 – 4
action abduction of digits
palmer interossei
prox: shaft of metacarpal of digits 2,
4 & 5
dist: dorsal digital expansion of
digits 2, 4 & 5, proximal phalanx of digits 2, 4 & 5
action: adduction
palmaris brevis
prox: palmar aponeurosis
dist: skin of medial border of hand
