Download UE and LE Muscle Data Base UMS III

Muscle
Location
Origin
Insertion
Nerve Root
Trunk
Division
Cord
Branch
Action
Upper Extremity
Hand
Pisiform
Base of proximal phalanx of
C8, T1
digit 5
Hand
Flexor retinaculum; scaphoid
and trapezium
Base of proximal phalanx of
C8, T1
thumb
Forearm - extensor - deep
Posterior surface of ulna and
radius
Adductor pollicis
Hand
Transverse head - 3rd
Base of proximal phalanx of
C8, T1
metacarpal; Oblique head thumb
bases of 1st 3 metacarpals and
Ancouneus
Arm
Lateral epicondyle of humerus
Biceps brachii
Arm
Brachialis
Brachioradialis
Abductor digiti minimi
Abductor pollicis brevis
Abductor pollicis longus
Base of 1st metacarpal
C7, C8
Lower
Anterior
Medial
Ulnar
Upper/Middle/Lower
Anterior
Lateral/Medial
Median
Abduction of thumb
Radial
Abduction and extension of
thumb
Middle
Posterior
Posterior
Abduction of digit 5
Lower
Anterior
Medial
Ulnar
Adduction and flexion of thumb
C7
Middle
Posterior
Posterior
Radial
Extension of forearm
Short head - tip of coracoid
Radial tuberosity and
process of scapula; long head - bicipital aponeurosis into
supraglenoid tubercle of scapula fascia of forearm
C5, C6
Upper/Middle
Anterior
Lateral
Musculocutaneous
Flexion and supination of
forearm; flexion of arm (short
head)
Arm
Lower half of anterior surface of
Ulnar tuberosity
humerus; intermuscular septa
C5, C6
Upper/Middle
Anterior
Lateral
Musculocutaneous
Flexion of forearm
Forearm - extensor superficial
Lateral supracondylar ridge of
humerus; lateral intermuscular
septum of arm
Lateral side of distal end of
radius
C5, C6
Middle
Posterior
Posterior
Radial
Flexion of forearm
Arm
Coracoid processof scapula
Anteromedial surface of
midshaft of humerus
Upper/Middle
Anterior
Lateral
Musculocutaneous
Flexion and adduction of
humerus
Deltoid
Shoulder
Lateral third of clavicle;
acromion; spine of scapula
Deltoid tuberosity on shaft of
C5, C6
humerus
Middle
Posterior
Posterior
Axillary
Dorsal interossei
Hand
Adjacent surfaces of
metacarpals
No. 1 - proximal phalanx on
radial side of digit 2; No.s 2- C8, T1
4 - proximal phalanx on
Lower
Anterior
Medial
Ulnar
Extensor carpi radialis
brevis
Foreamr - extensor superficial
Lateral epicondyle of humerus
(common extensor tendon)
Base of 3rd metacarpal
C6, C7
Middle
Posterior
Posterior
Radial
Extension of hand
C6, C7
Middle
Posterior
Posterior
Radial
Extension and abduction (radial
deviation) of hand
C7
Middle
Posterior
Posterior
Radial
Extension and adduction (ulnar
deviation) of hand
Middle and distal phalanges
C7
of little finger
Middle
Posterior
Posterior
Radial
Extension and abduction of 5th
digit
Middle
Posterior
Posterior
Radial
Extension of digits 2-5
Coracobrachialis
Extensor carpi radialis
longus
Forearm - extensor superficial
Extensor carpi ulnaris
Forearm - extensor superficial
Extensor digiti minimi
Forearm - extensor superficial
Extensor digitorum
Forearm - extensor superficial
Lateral side olecranon of
ulna
Lateral supracondylar ridge and
lateral epicondyle of humerus Base of 2nd metacarpal
(common extensor tendon)
Lateral supracondylar ridge and
lateral epicondyle of humerus Base of 5th metacarpal
(common extensor tendon);
Lateral epicondyle of humerus
(common extensor tendon)
Lateral epicondyle of humerus;
Middle and distal phalanges
C7
intermuscular septum;
of digits 2-4
antebrachial fascia
Tendon of extensor
Posterior surface of ulna
C7
digitorum; extensor
expansion
Extensor indicis
Forearm - extensor - deep
Extensor pollicis brevis
Forearm - extensor - deep
Posterior surface of radius
Extensor pollicis longus
Forearm - extensor - deep
Posterior surface of middle third
Distal phalanx of thumb
of ulna
Flexor carpi radialis
Medial epicondyle of humerus
Forearm - flexor - superficial
(common flexor tendon)
Flexor carpi ulnaris
Medial epicondyle of humerus
Forearm - flexor - superficial (common flexor tendon);
Pisiform bone
proximal 2/3's of posterior ulnar
Flexor digiti minimi
Hand
Flexor digitorum profundus Forearm - flexor - deep
Flexor digitorum superficialis
Forearm - flexor intermediate
C5, C6
Flexor retinaculum; hook of
hamate
Proximal phalanx of thumb C6, C7
C7, C8
Base of 2nd metacarpal and
C6, C7
possibly 3rd
Proximal phalanx of digit 5
Abduction (middle fibers), flexion
and internal rotation (anterior
fibers), and extension and
Abduction of digits 2-4, flexion of
MCP joints; extension of
interphalangeal joints (depending
Middle
Posterior
Posterior
Radial
Extension of index finger
Middle
Posterior
Posterior
Radial
Extension of proximal phalanx of
thumb
Middle
Posterior
Posterior
Radial
Extension of distal phalanx of
thumb
Upper/Middle/Lower
Anterior
Lateral/Medial
Median
Flexion and abduction (radial
deviation) of hand
C8, T1
Lower
Anterior
Medial
Ulnar
Flexion and adduction (ulnar
deviation) of hand
C8, T1
Lower
Anterior
Flexion of digit 5
Medial
Ulnar
Anterior and medial surfaces of
Distal phalanges of digits 2-5 C8, T1
proximal 2/3's of ulna
Upper/Middle/Lower - Digits
2-3; Middle/Lower - Digits 4- Anterior
5
Lateral/Medial
Median - digits 2-3; Ulnar - Flexion of distal phalanx of digits
digits 4-5
2-5
Medial epicondyle of humerus
(common flexor tendon); medial Middle phalanx of digits 2-5 C8
aspect of coronoid process of
Upper/Middle/Lower
Lateral/Medial
Median
Anterior
Flexion of middle phalanges of
digits 2-4
Flexor pollicis brevis
Flexor pollicis longus
Infraspinatus
Hand
Superficial head - flexor
retinaculum (and possibly
trapezium); Deep head -
Forearm - flexor - deep
Anterior sorface of middle half of
Distal phalanx of thumb
radius
Base of proximal phalanx of
C8, T1
thumb
C8
Greater tubercle of humerus
C5, C6
below supraspinatus
Upper/Middle/Lower Superficial head;
Middle/Lower - Deep head
Anterior
Lateral/Medial
Median - Superficial head;
Ulnar - Deep head
Flexion of thumb; aids in
opposition and adduction
Upper/Middle/Lower
Anterior
Lateral/Medial
Median
Flexion of distal phlanx of thumb
Suprascapular
External rotation of humerus
Medial
Thorcodorsal
Extension, adduction and internal
rotation of humerus
Nerve to levator scapulae
Elevation of scapulae
Shoulder
Infraspinatus fossa of scapula
Latissimus dorsi
Shoulder
Spinous processes of lower six
thoracic and all lumbar and
sacral vertebrae; posterior part
Levator scapulae
Shoulder
Lumbricals
Hand
Tendons of flexor digitorum
profundus
Extensor aponeurosis of
digits 2-5
C8, T1
Upper/Middle/Lower - Digits
2-3; Middle/Lower - Digits 4- Anterior
5
Lateral/Medial
Median - digits 2-3; Ulnar - Extension of interphalageal joints
digits 4-5
of digits 2-5; flexion of MCP joints
Opponens digiti minimi
Hand
Flexor retinaculum; hook of
hamate
5th metacarpal
C8, T1
Lower
Anterior
Medial
Ulnar
Opponens pollicis
Hand
Flexor retinaculum; trapezium
First metacarpal
C8, T1
Upper/Middle/Lower
Anterior
Lateral/Medial
Median
Opposition of thumb
Hand
Shaft of metacarpal - one to
each digit 2, 4-5
Extensor aponeurosis of
finger of origit
C8, T1
Lower
Anterior
Medial
Ulnar
Adduction of the respective digit,
2, 4-5; flexion of MCP joints;
extension of IP joints
Palmaris brevis
Hand
Palmar aponeurosis, medial
border
Skin on ulnar side of hand
C8, T1
Lower
Anterior
Medial
Ulnar
Stabilization of skin of palm for
gripping
Palmaris longus
Forearm - flexor - superficial
Medial epicondyle of humerus
(common flexor tendon)
Palmar aponeurosis
C7, C8
Upper/Middle/Lower
Anterior
Lateral/Medial
Median
Flexion of hand
Pectoralis major
Shoulder
Lateral lip of intertubercular
Medial 2/3's of clavicle; sternum;
C5, C6, C7 Upper pectoral; Upper (upper pec); Lower
groove (crest of greater
costal cartilages 1-6
C8, T1 Lower pectoral
(lower pec)
tubercle) of humerus
Anterior (upper/lower pec)
Adduction and medial rotation of
Lateral (upper pec); Medial Lateral pectoral (upper pec);
arm; flexion (clavicular fibers)
(lower pec)
Medial pectoral (lower pec)
and extension (sternocostal
Pectoralis minor
Shoulder
Ribs 3-5
Coracoid process of scapula C8, T1
Lower
Anterior
Medial
Medial pectoral
Depression of shoulder;
downward rotation of scapula
Pronator quadratus
Forearm - flexor - deep
Distal fourth of ulna
Distal part of radius
C8
Upper/Middle/Lower
Anterior
Lateral/Medial
Median
Pronation of forearm (and hand)
Pronator teres
Medial epicondyle of humerus; Lateral surface of shaft of
Forearm - flexor - superficial
coronoid process of ulna
radius
C6, C7
Upper/Middle/Lower
Anterior
Lateral/Medial
Median
Palmar interossei
Medial lip (crest of lesser
tubercle) and floor of
intertubercular broove of
Superior angle and upper
Transverse processes of upper
part of medial border of
four cervical vertebrae
scapula
C6, C7, C8
Upper
Lower
Anterior
C3, C4
Shoulder
Spinous processes of 2nd to 5th Medial border of scapula
thoracic vertabrae
below rhomboideus minor
C5 nerve root
Dorsal scapular
Shoulder
Lower part of ligamentum
nuchae; spinous processes of
7th cervical and 1st thoracic
Medial border of scapula at
C5 nerve root
base of spine
Dorsal scapular
Serratus anterior
Shoulder
Ribs 1-8 on anterolateral
thoracic wall
Medial border of scapula;
heaviest insertion to inferior C5, C6, C7 nerve roots
angle
Long thoracic
Sternocleidomastiod
Shoulder
Tendinous head from sternum;
muscular head from medial third Mastoid process of skull
of clavicle
C1, C2, C3
Subclavius
Shoulder
Rib 1 - arises and passes
laterally
Undersurface of clavicle
C5, C6
Shoulder
Subscapula fossa of scapula
Lesser tubercle and crest of
C5, C6
humerus
Supinator
Forearm - extensor - deep
Posterolateral surface of ulna
Proximal shaft of radius
below radial notch; lateral
epicondyle; radial collateral and
Supraspinatus
Rhomboideus major
Rhomboideus minor
CNXI - Spinal accessory
nerve to subclavius
Middle
Posterior
Posterior
Upper and lower
subscapular
C5, C6
Middle
Posterior
Posterior
Radial
Shoulder
Supraspinatus fossa of scapula Greater tubercle of humerus C5, C6
Upper
Teres major
Shoulder
Inferior angle of scapula
Medial lip of intertubercular
C5, C6
groove of humerus
Middle
Posterior
Teres minor
Shoulder
Upper 2/3's of lateral border of
scapula
Greater tubercle of humerus
C5, C6
below infraspinatus
Middle
Posterior
Subscapularis
Trapezius
Shoulder
Triceps brachii
Arm
External occipital protuberance;
Spine of scapula; acromion;
C1, C2, C3
ligamentum nuchae; spinous
lateral third of clavicle
processes of 7th cervical and all
Long head - infraglenoid
Proximal end of olecranon
C7
tubercle of scapula; lateral head of ulna
posterior surface of humerus
Middle
Posterior
Opposition of digit 5 to thumb
Pronation of forearm (and hand)
Elevation and retraction of
scapula; downward rotation of
glenoid cavity
Elevation and retraction of
scapula; downward rotation of
glenoid cavity
Protraction of scapula; upward
rotation of glenoid cavity; holds
medial border against thoracic
One muscle - flexion of neck
toward same side (turns face to
opposite side and brings ear of
Possible depresses clavicle;
maintains sternoclavicular joint
Supination of forearm (and hand)
Suprascapular
Abduction of humerus
Posterior
Lower subscapular
Adduction, internal rotation and
extension of arm
Posterior
Axillary
External rotation of scapula
CNXI - Spinal accessory
Elevation of scapula (upper
fibers); retraction of scapula
(middle fibers); depression of
Radial
Extension of forearm; extension
of arm (long head)
Posterior
Muscle
Location
Origin
Insertion
Nerve Root
Division
Branch
Action
Lower Extremity
Abductor digiti minimi
Abductor hallucis
Foot - superficial
Foot - superficial
Lateral tuberal process of
calcaneus; medial process
(small area); intervening surface
Medial tuberal process of
calcaneus; flexorretinaculum;
medial intermuscular septum
Proximal phalanx of little toe
S1, S2
(lateral side)
Lateral plantar
Flexion and abduction of
little toe
Proximal phalanx of big toe
S1, S2
(tibial side of flexor surface)
Lateral plantar
Flexion of big toe at
metatarsophalangeal joint
Obturator nerve.
Adducts femur, some
flexion.
Lateral plantar
Adduction and flexion of big
toe
Obturator nerve, anterior
branch.
Adducts femur.
Pectineal line and proximal
Body and inferior ramus of pubis part of linea aspera of
L2, L3, L4
femur.
Oblique head - bases of second
Base of proximal phalanx of
S1, S2
to fourth metatarsals; sheath of
big toe
peroneus longus tendon.
Adductor brevis
Thigh - medial
Adductor hallucis
Foot - 3rd layer
Adductor longus
Thigh - medial
Body of pubis, inferior to pubic
crest.
Thigh - medial
Inferior ramus of pubis, ramus of Gluteal tuberosity, linea
L2, L3, L4 (Adductor part).
ischium (adductor part), and
aspera medial,
L4 (Hamstring part)
ischial tuberosity.
supracondylar line (adductor
Adductor magnus
Middle third of linea asperal
L2, L3, L4
of femur.
Biceps femoris - long head Thigh - posterior
Long head - ischial tuberosity.
Head of fibula
L5, S1, S2
Biceps femoris - short head Thigh - posterior
Short head - linea aspera of
femur
Head of fibula
L5, S1
Dorsal interossei
Adjacent sides of metatarsals
Foot - dorsal surface
Calcaneous (dorsal surface)
Extensor digitorum longus
Calf - anterior
Lateral condyle of tibia; proximal
middle anddistal phalanges
L4, L5, S1
three fourths of anerior surface
of lateral four toes
of fibula; interosseous
Extensor hallucis brevis
Foot - dorsal surface
Calcaneous (dorsal surface)
Calf - anterior
Middle third of anterior surface of
Distal phalanx of great toe
fibula; adjacent interosseous
membrane
Extensor digitorum brevis
Extensor hallucis longus
Foot - deep layer
Common peroneal
Flexion of leg; external
rotation of flexed leg
Proximal phalanges - #1 to
medial side of second toe - S1, S2
#2,3 and 4 to lateral side of
Lateral plantar
Abduction of toes
Extensor digitorum longus
tendons to 2nd - 4th toes
Deep peroneal
Extension of 2nd - 4th toes
Deep peroneal
Extension of four lateral toes;
dorsiflexion and eversion of
foot
L5, S1
Base of proximal phalanx of
L5, S1
big toe
L4, L5, S1
Flexor digiti minimi brevis
Foot - 3rd layer
Base of 5th MT
Base of proximal phalanx of
S1, S2
little toe (plantar surface)
Flexor digitorum brevis
Foot - superficial
Medial tuberal process of
calcaneus; medial and lateral
intermuscular septa
Middle phalanges of lateral
L5, S1
four toes
Flexor digitorum longus
Calf - deep
Flexor hallucis longus
Calf - deep
Flexor halucis brevis
Foot - 3rd layer
Gastrocnemius
Calf - posterior
Gluteus maximus
Buttock
Gluteus medius
Buttock
Gluteus minimus
Gracilis
Obturator nerve (Adductor Adducts femur Flexes femur
part). Tibial portion of sciatic (Adductor part). Extends
nerve (Hamstring part)
femur (Hamstring part)
Extension of thigh; Flexion of
Tibial nerve
leg; external rotation of
flexed leg
Deep peroneal
Extension of big toe
Deep peroneal
Extension of great toe,
dorsiflexion and inversion of
foot
Lateral plantar
Flexion of proximal phalanx
of little toe
Medial plantar
Flexion of middle phalanges
of lateral four toes
Middle third of posterior surface Distal phalanges of lateral
of tibia
four toes
L5, S1
Tibial nerve
Flexion of distal phalanges
of lateral four toes; weak
plantar flexion and inversion
Middle half of posterior of fibula Distal phalanx of great toe
L5, S1, S2
Cuboid bone; lateral cuneiform
bone; tendon of tibialis posterior
muscle
Posterior surface of femur just
proximal to medial and lateral
condyles
Lateral surface of ilium behind
posterior gluteal line; dorsal
sacroiliac and sacrotuberous
Lateral surface of ilium between
anterior and posterior gluteal
lines
Tibial nerve
Flexion of big toe; weak
planar flexion of foot
Medial and lateral sides of
base of proximal phalnax of L5, S1
big toe
Medial plantar
Flexion of proximal phalanx
of big toe
Calcaneus through tendonS1, S2
calcaneus
Tibial nerve
Iliotibial tract; gluteal
tuberosity of femur
L5, S1, S2
Inferior gluteal
Greater trochanter of femur L4, L5, S1, S2
Superior gluteal
Buttock
Lateral surface of ilium between
Greater trochanter of femur L4, L5, S1, S2
anterior and inferior gluteal lines
Superior gluteal
Thigh - medial
Body and inferior ramus of
pubis.
Obturator nerve.
Superior part of medial
surface of tibia.
L2, L3
Plantar flexion of foot; flexion
of leg of free limb
Extension, external rotation,
abduction (upper fibers),
and adduction (lower fibers)
Abduction of thigh; probably
extnsion and external
rotation of thigh
Abduction of thigh; probably
flexion and internal rotation
of thigh
Adducts femur, flexes leg
and helps rotate leg
medially.
Iliacus
Inferior gemellus
Lumbricals
Obturator externus
Thigh - anterior
Iliac crest, iliac fossa, ala of
Tendon of psoas major and
L2, L3
sacrum, and anterior sacroiliac body of femur, inferior to
ligaments
lesser trochanter
Inferior border of obturator
internus tendon
Buttock
Ischial tuberosity
Foot - 2nd layer
Expansions of extensor
Flexor digitorum longus tendons
tendons of lateral four toes
Thigh - medial
Obturator membrane; bone
around obturator foramen on
external surface of pelvis.
Obturator membrane; bone
around obturator foramen on
internal surface pelvis
Femoral nerve
L4, L5, S1
L5, S1 First lumbrical - S1,
S2 lateral three lumbricals
Trochanteric fossa of femur L3, L4
Medial surface of greater
trochanter above
trochanteric fossa of femur
Pectineal line of femur.
Flex femur at hip
Exernal roation of thigh;
Nerve to quadratus femoris abduction of thigh when
thigh flexed
Medial plantar first
Flexion of
lumbrical, Lateral plantar
metatarsophalangeal joints;
lateral three lumbricals
possible extension of
Obturator nerve
External rotation of thigh.
L5, S1, S2
Nerve to obturator internus
External rotation of thigh;
abduction of thigh when
thigh is flexed
L2, L3
Femoral nerve, May receive
Adducts and flexes femur.
a branch from obturator
nerve.
Obturator internus
Buttock
Pectiueus
Thigh - medial
Pecten pubis (pectineal line of
pubis)
Peroneous brevis
Calf - lateral
Distal two thirds of lateral surface Dorsal surface of base of fifth
L4, L5, S1
of fibula
metatarsal
Superficial peroneal
Eversion and weak plantar
flexion of foot
Peroneous longus
Calf - lateral
Distal two thirds of lateral surface Base of first metatarsal;
of fibula
medial cuneiform
Superficial peroneal
Eversion and weak plantar
flexion of foot
Peroneous tertius
Calf - anterior
Fibula in common with lower
fibers of extensor digitorum
longus
Dorsal surface of base of fifth
L4, L5, S1
metatarsal
Deep peroneal
Dorsiflexion and eversion of
foot
Piriformis
Buttock
Sacrum (pelvic surface)
Greater trochanter of femur S1, S2
S1 and S2 nerve roots
External rotation of thign;
abduction of thigh when
thigh is flexed
Plantar interossei
Foot - deep layer
Medial side of 3rd - 5th
metatarsals
Medial side of proximal
phalanges of same toes
Lateral plantar
Adduction ot toes
Lateral epicondyle of femur
Calcaneus (anteromedial to
L4, L5, S1
tendocalcaneus)
Proximal third of posterior
aspect of tibia (proximal to
soleal line)
Plantaris
Calf - posterior
Popliteus
Calf - deep
Lateral condyle of femur
Psoas Major
Thigh - anterior
Sides of T12-L5 vertebraie and
Lesser trochanter of femur
intervertebral discs
Quadratus femoris
Ischial tuberosity
Quadratus plantae
Foot - 2nd layer
Medial and lateral sides of
plantar surface of calcaneous
Rectus femoris
Thigh - anterior
Anterior inferior iliac spine and
groove superior to acetabulum
Thigh - anterior
Anterior superior iliac spine and
Superior part of medial
superior part of notch inferior to
surface of tibia.
it.
L5, S1
Semitendinosus
Thigh - posterior
Calf - posterior
Ischial spine
Superior borderof obturator
L5, S1, S2
internus tendon
Buttock
Tensor fasciae latae
Thigh - anterior
Tibialis anterior
Calf - anterior
Tibialis posterior
Calf - deep
Vastus intermedius
Thigh - anterior
Vastus lateralis
Thigh - anterior
Vastus medialis
Thigh - anterior
Weak plantar flexion of foot;
weak flexion of leg
Tibial nerve
Internal rotation of leg on
femur; external rotation of
femur on leg
Flex femur at hip
External rotation and
Nerve to quadratus femoris
adduction of thigh
Posterior
L2, L3
Thigh - posterior
Superior gemellus
Tibial nerve
L1-L3 Ventral rami
Semimembranosus
Soleus
Ischial tuberosity
S1, S2
Posterior surface of femur
between greater and lesser L4, L5, S1
trochanters
Lateral and posterior margin
of tendon of flexor digitorum S1, S2
longus
Base of patella and via
L2, L3, L4
patellar ligament to tibial
tuberosity
Buttock
Sartorius
L4, L5, S1
Lateral plantar
Aids in flexion of lateral four
toes by modifying pull by
flexor digitorum longus
Femoral nerve
Extend leg at knee joint.
Flexes femur at hip.
Femoral nerve
Medial condyle of tibia
L5, S1
Sciatic nerve - tibial portion
Ischial tuberosity
Medial surface fi proximal
end of tibia
L5, S1
Sciatic nerve - tibial portion
Soleal (or popliteal) line and
adjacent surface of tibia;
proximal third of posterior
Calcaneus through tendonS1, S2
calcaneus
Anterior superior iliac spine and
Iliotibial tract that attaches to
anterior part of external lip of iliac
lateral condyle of tibia
crest
Lateral condyle of tibia; proximal
medial cuneiform; base of
two thirds of lateral surface of
first metatarsal
tibia; interosseous membrane;
Proximal two-thirds of posterior Navicular; cuneiforms;
surface of tiia; proximal two
cuboid; bases of second to
thirds of fibula; interosseous
fourth metatarsals
Base of patella and via
Anterior and lateral surfaces of
patellar ligament to tibial
body of femur.
tuberosity
Base of patella and via
Great trochanter and lateral lip of
patellar ligament to tibial
linea asperal of femur.
tuberosity
Base of patella and via
Intertrochanteric line and medial
patellar ligament to tibial
lip of linea aspera of femur.
tuberosity
Flexes, abducts, and
laterally rotates femur at hip.
Extension of thigh; flexion of
leg; internal rotation of flexed
leg
Extension of thigh; flexion of
leg; internal rotation of flexed
leg
Tibial nerve
Plantar flexion of foot
Nerve to obturator internus
External rotation of thigh;
abduction of thigh when
thigh is flexed
L4, L5
Superior gluteal
Abducts, medially rotates,
and flexes femur.
L4, L5, S1
Deep peroneal
Inversion and dorsiflexion of
foot
L5, S1
Tibial nerve
Inversion and ;lantar flexion
of foot
L2, L3, L4
Posterior
Femoral nerve
Extend leg at knee joint.
L2, L3, L4
Posterior
Femoral nerve
Extend leg at knee joint.
L2, L3, L4
Posterior
Femoral nerve
Extend leg at knee joint.