! 1!
ANTEROMEDIAL+THIGH,+ANTERLATERAL+LEG+AND+DORSUM+OF+FOOT+MUSCLE+GROUPS+
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ANTERIOR+THIGH:+FLEXORS+OF+THE+HIP+JOINT+(SIP2)**+MUSCLE+ ORIGIN+ INSERTION+ NERVE+SUPPLY+ ACTION+Sartorius+ Anterior!Superior!Iliac!Spine!(ASIS)! Upper!medial!surface!of!
shaft!of!tibia!Femoral!Nerve! Flexes,!abducts,!laterally!
rotates!thigh!at!hip!joint;!flexes!and!medially!rotates!
leg!at!knee!joint!Iliacus+ Iliac!fossa!of!hip!bone! Lesser!trochanter!of!
femur!Flexes!thigh!on!truck;!if!thigh!is!fixes,!it!flexes!the!trunk!on!the!thigh!as!in!
sitting!up!from!lying!down!
Psoas+ Transverse!processes,!and!intervertebral!discs!of!the!12th!thoracic!and!5!lumbar!vertebrae!
Lumbar'Plexus'
Pectinius*+ Superior!ramus!of!pubis! Upper!end!of!linea!aspera!of!shaft!of!femur!
Femoral!Nerve! Flexes!and!adducts!thigh!at!hip!joint!
*According'to'Dr.'DJ,'PECTINIUS'is'also'an'EXTENSOR'OF'THE'KNEE'JOINT'**An'Additional'Anterior'Thigh'Muscle'is'the'TENSOR'FASCIAE'LATA'
ANTERIOR+THIGH:+EXTENSORS+OF+THE+HIP+JOINT+(RV3)**+MUSCLE+ ORIGIN+ INSERTION+ NERVE+SUPPLY+ ACTION+
QUADRICEPS+FEMORIS+Rectus+Femoris+ Straight!head:!Anterior!Inferior!Iliac!
Spine!(AIIS)!Reflected!head:!
Ilium!above!acetabulum!
Quadriceps!tendon!into!patella,!then!via!
ligamentum!patellae!into!tubercle!of!tibia!
Femoral!Nerve! Extension!of!leg!at!knee!joint;!flexes!thigh!at!hip!
joint!
Vastus+Lateralis+ Upper!end!and!shaft!of!femur! Extension!of!leg!at!knee!joint!
Vastus+Medialis+ Extension!of!leg!at!knee!joint;!stabilizes!patella!
Vastus+Intermedius+ Anterior!and!lateral!surfaces!of!shaft!of!femur!
Extension!of!leg!at!knee!joint;!articular!genus!retracts!synovial!
membrane!
! 2!
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! 3!
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MEDIAL+THIGH:+ADDUCTORS)OF)THIGH+(LBM+GO)+MUSCLE+ ORIGIN+ INSERTION+ NERVE+SUPPLY+ NERVE+ROOT+ ACTION+
Adductor+Longus+ Body!of!pubis!below!its!crest!
Middle!third!of!linea!aspera!
Obturator!nerve! L2,!L3,!L4! Adducts!thigh!at!hip!joint!and!assists!in!lateral!motion!
Adductor+Brevis+ Body!of!inferior!pubic!ramus!
Pectineal!line,!upper!part!of!linea!aspera!
Obturator!nerve! L2,!L3,!L4! Adducts!thigh!at!hip!joint!and!assists!in!lateral!rotation!
Adductor+Magnus+ Ischiopubic!ramus,!ischial!tuberosity!
Linea!aspera,!medial!supracondylar!line,!adductor!tubercle!
Obturator!nerve!and!sciatic+nerve!
(tibial!part)!
L2,!L3,!L4! Adducts!thigh!at!hip!joint!and!assists!in!lateral!rotation;!hamstring!
portion!extends!thigh!at!hip!joint!Gracilis+ Inferior!ramus!of!
pubis,!ramus!of!ischium!
Medial!surface!of!upper!quarter!of!tibia!
Obturator!nerve! L2,!L3! Adducts!and!flexes!thigh,!flexes!and!rotates!leg!medially!
Obturator+Externus+ Margin!of!obturator!foramen!and!pubic!and!ischial!rami!
Intertrochanteric!fossa!of!femur!
Obturator!nerve! L3,!L4! Rotates!thigh!laterally!at!hip!joint!
! 4!
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LATERAL+LEG+(PL,+PB)+MUSCLE+ ORIGIN+ INSERTION+ NERVE+SUPPLY+ ACTION+
Peroneus/Fibularis+Longus+
Lateral!surface!of!the!shaft!of!the!
Fibula!
Base!of!the!1st!First!Metetarsal!bone,!Medial!Cuneiform!
Superficial!Peroneal!Nerve!(L5,!S1,!S2)!
Plantar!Flexion!at!the!Ankle!joint,!Everts!foot!at!the!subtalar!and!transverse!Tarsal!joints,!Supports!Lateral!Longitudinal!and!Transverse!arches!of!
the!foot!!
Peroneus/Fibularis+Brevis+
+
Lateral!surface!of!the!shaft!of!the!
Fibula!
Tendons!of!the!lateral!four!Toes!
Plantar!flexion!of!foot!at!Ankle!Joint,!Everts!foot!at!the!subtalar!and!transverse!Tarsal!joints,!
Supports!Lateral!Longitudinal!arch!of!the!foot!
! 5!
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ANTERIOR+LEG+(TA,+EDL,+PT,+EHL,+EDB)+MUSCLE+ ORIGIN+ INSERTION+ NERVE+SUPPLY+ ACTION+
Tibialis+Anterior+ Lateral!surface!of!shaft!of!tibia!and!interosseous!membrane!
Medial!cuneiform!and!base!of!
1st!metatarsal!bone!
Deep!peroneal!Nerve!(L4,!5)!
Extends!foot!and!Dorsiflexion!at!Ankle!joint,!
Inverts!foot!at!Subtalar!and!Transverse!Tarsal!Joints,!
Holds!the!Medial!Longitudinal!Arch!of!the!Foot!
Extensor+Digitorum+Longus+
Anterior!surface!of!shaft!of!fibula!
Extensor!expansion!of!lateral!
four!toes!
Deep!peroneal!Nerve!(L5;!S1)!
Extends!four!lateral!toes,!Extends!foot!at!Ankle!joint!
Peroneus/Fibularis+Tertius+
Anterior!surface!of!shaft!of!fibula!
Base!of!5th!metatarsal!bone!
Deep!peroneal!Nerve!(L5;!S1)!
Extends!foot!at!the!Ankle!joint,!Everts!foot!at!Subtalar!and!Transverse!
Tarsal!Joints!Extensor+Hallucis+
Longus+Anterior!surface!of!
shaft!of!fibula!Base!of!distal!phalanx!
of!great!toe!
Deep!peroneal!Nerve!(L5;!S1)!
Dorsiflexion!of!the!foot!at!Ankle!joint,!Extends!the!big!toe,!
Inverts!foot!at!Subtalar!and!Transverse!Tarsal!Joints!
Extensor+Digitorum+Brevis+(Snell,)but)can)
also)be)found)in)dorsum)of)foot))
Calcaneum! By!four!tendons!into!the!proximal!phalanx!of!big!toe!and!long!extensor!tendons!to!second,!third,!and!
fourth!toes!
Deep!peroneal!Nerve!(S1,!2)!
Extends!toes!
! 6!
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DORSUM+OF+THE+FOOT+(EDB,+EHB)+MUSCLE+ ORIGIN+ INSERTION+ NERVE+SUPPLY+ NERVE+ROOT+ ACTION+
Extensor+Digitorum+Brevis+
Anterior!part!of!upper!surface!of!the!
calcaneum!and!from!the!inferior!extensor!
retinaculum!!
By!four!tendons!into!the!proximal!phalanx!of!big!toe!and!long!extensor!tendons!to!2nd,!3rd,!and!4th!toes!
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Deep!Peroneal!Nerve!
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!S1,!S2!
!Extends!toes!
Extensor+Hallucis+Brevis+
Superolateral!surface!of!the!calcaneum!
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Dorsum!of!the!base!of!proximal!phalanx!of!
the!big!toe!
!L4,!L5,!S1!
!Extends!big!toe!