Origin/Insertion Flashcards
PEC MAJOR
O: clavicle, sternal, costal heads
I: lat lip of inter tubercle groove
N: lat/med pectoral nerve
F: adduct, IR, Flex, Ext
PEC MINOR
O: ribs 3, 4, 5
I: coracoid
N: med pectoral
F: scap fixed - elevate ribs, scap protraction
scap not fixed - stretch arm forward
Subclavius
O: 1st rib
I: clavicle
N: n. to subclavius
F: anchor/depress clavicle
SERRATUS ANTERIOR
O: ext surface of ribs 1-8
I: ant surface/med border of scap
N: long thoracic
F: rotate inf angle of scap
hold scap against thoracic wall
protract scap
TRAPS
O: sup nuchal line, C7 - T12
I: acomion, spine of scap
N: accessory
F: sup - elevate scap
mid - retract scap
inf - depress scap/lower shldr
combined - rotate scap
LATS
O: T7, thoracolumbar fascia, iliac crest
I: acromion, spine of scap
N: thoracodorsal
F: ext/ADD/IR
LEVATOR SCAP
O: C1-4
I: med border of scap
N: dorsal scapular
F: elevate scap
RHOMBOIDS
O: C7-T5
I: med border of scap
N: dorsal scapular
F: retract scap
DELTOID
O: acromion, spine of scap, clavicle
I: deltoid tuberosity
N: axillary
F: stabilize shldr
abd shldr > 15
ant - flex shldr
post - ext shldr
TERES MAJOR
O: inf angle of scap
I: med lip of inter tubercle groove
N: lower subscapular
F: stabilize humeral head
ADD shldr
IR
SUPRASPINATUS
O: supraspinous fossa
I: greater tubercle
N: suprascapular
F: abd shldr 1st 15
INFRASPINATUS
O: infraspinous fossa
I: greater tubercle
N: suprascapular
F: ADD/ER
TERES MINOR
O: lat border of scap
I: greater tubercle
N: axillary
F: ADD/ER
SUBSCAPULARIS
O: subscapular fossa
I: lesser tubercle
N: upper/lower sub scapular
F: ADD/IR
BICEPS
O: long head - supraglenoid tubercle
short head - coracoid process
I: radial tuberosity/bicepital aponeurosis
N: musculocutaneous
F: flex arm/f arm
supinate f arm when elbow flexed
BRACHIALIS
O: distal 1/2 of humerus
I: coronoid process/ulnar tuberosity
N: musculocutaneous
F: flex elbow
CORACOBRACHIALIS
O: coracoid process
I: mid 1/3 of humerus
N: musculocutaneous
F: flex/add arm
stabilize GH joint
TRICEPS
O: infraglenoid tubercle
I: olecranon
N: radial
F: extend elbow
ext/add arm/shldr
ANCONEUS
O: lat epicondyle
I: olecranon
N: radial
F: ext f arm
PRONATOR TERES
O: humeral head, lat epicondyle, ulnar head
I: lat surface of radius
N: median
F: pronate f arm
FLEXOR CARPI RADIALIS
O: humeral head, med epicondyle
I: 2nd metacarpal
N: median
F: flex/abd wrist
FLEXOR CARPI ULNARIS
O: humeral head/ medial epicondyle
I: pisiform
N: ulnar
F: flex/add hand
PALMARIS LONGUS
O: humeral head/medial epicondyle
I: flexor retinaculum/palmer aponeurosis
N: median
F: N/A
FLEXOR DIGITORUM SUPERFICIALIS (FDS)
O: humeral, ulnar, radial heads
I: body of mid phalanges (2-5)
N: median
F: flex PIP, MCP, wrist, slight elbow flex
FLEXOR DIGITORUM PROFUNDUS (FDP)
O: ulna/interosseus membrane
I: base of distal phalanges (2-5)
N: median (2 & 3), ulnar (4 & 5)
F: flex DIP, PIP, MCP, and wrist
FLEXOR POLLICIS LONGUS
O: ant radius/interosseus membrane
I: base of distal phalanx
N: median
F: flex IP (thumb), MCP, CMC and wrist
PRONATOR QUADRATUS
O: distal 1/4 of ant ulna
I: distal 1/4 of ant radius
N: median
F: pronate
BRACHIORADIALIS
O: lat supraepicondylar ridge
I: lat radius
N: radial
F: flex elbow
EXTENSOR CARPI RADIALIS LONGUS
O: lat supraepicondylar ridge
I: base of 2nd MC
N: radial
F: ext, abd, add wrist
EXTENSOR CARPI RADIALIS BREVIS
O: lat epicondyle
I: base of 3rd MC
N: radial
F: ext, abd, add wrist
EXTENSOR DIGITORUM
O: lat epicondyle
I: extensor expansion
N: radial
F: ext medial 4 digits
EXTENSOR DIGITI MINIMI
O: lat epicondyle
I: extensor expansion of 5th digit
N: radial
F: exited 5th digit
EXTENSOR CARPI ULNARIS
O: lat epicondyle
I: base of 5th MC
N: radial
F: ext, abd, add wrist
SUPINATOR
O: lat epicondyle, radial collateral/anular lig
I: lat, ant, post surface of radius
N: post interosseous
F: supinate
ABDUCTOR POLLICIS LONGUS
O: post surface of ulna, radius, interosseous
membrane
I: base of 1st MC
N: post interosseous
F: ext/abd 1st digit
EXTENSOR POLLICIS BREVIS
O: post radius/interosseous membrane
I: base of prox phalanx
N: post interosseous
F: ext/abd 1st digit
EXTENSOR POLLICIS LONGUS
O: post radius/interosseous membrane
I: base of distal phalanx
N: post interosseous
F: ext/abd 1st digit
EXTENSOR INDICES
O: ulna/interosseous membrane
I: 2nd extensor expansion
N: post interosseous
F: ext med 2 digits
ABDUCTOR POLLICIS BREVIS
O: flexor retinaculum, scaphoid, trapezium
I: base of 1st phalanx
N: median
F: abd thumb, CMC opposition
FLEXOR POLLICIS BREVIS
O: flexor retinaculum, scaphoid, trapezium
I: base of 1st phalanx
N: superficial head of median
deep head of ulnar
F: flex thumb CMC/MCP opp of thumb
OPPONENS POLLICIS
O: flexor retinaculum, scaphoid, trapezium
I: 1st MC
N: median
F: opposition of thumb (flex/med rotation of
1st MC/CMC)
ABDUCTOR DIGITI MINIMI
O: pisiform
I: base of prox phalanx
N: ulnar
F: abd digit
flex 5th prox
FLEXOR DIGITI MINIMI BREVIS
O: hook of hamate/flexor retinaculum
I: base of 5th prox phalanx
N: ulnar
F: flex 5th MCP
OPPONENS DIGITI MINIMI
O: hook of hamate/flexor retinaculum
I: med border of 5th MC
N: ulnar
F: flex/lat rotate 5th MC
LUMBRICALS
O: FDP tendons
I: lat side of extensor expansion
N: 1 & 2 - median
3 & 4 - ulnar
F: flex MCP, ext IP
ADDUCTOR POLLICIS
O: capitate, 2/3 MC
I: med side of base of 1st prox phalanx
N: ulnar
F: adduct thumb
DORSAL/PALMER INTEROSSEI
O: from MCs
I: extensor expansion, base of prox phalanx
N: ulnar
F: adduct digits - palmer (PAD)
abduct digits - dorsal (DAB)
helps lumbrical function
