Name.

Position.

Origin.

Insertion.

Action.

Nerve Supply.

Gluteus

maximus.

Back of pelvis. Largest and most superficial of three muscles which form the buttocks.

Posterior fourth of iliac crest and superior curved line, back of sacrum and coccyx.

Fascia lata. Femur below great trochanter.

Rotates and abducts thigh. Extends hip-joint.

Branch from inferior gluteal.

Gluteus

medius.

Outer side of pelvis, partly under maximus.

Back of ilium between crest and middle curved line.

Outer surface of great trochanter.

Rotates and abducts thigh. Extends hip-joint.

Superior

gluteal.

Gluteus

minimus.

Beneath medius.

Between middle and inferior curved lines of ilium.

Front of great trochanter.

Rotates and abducts thigh. Extends hip-joint.

Superior

gluteal.

Pyriformis.

Partly within the pelvis and partly at back of hip-joint.

Front of sacrum.

Top of great trochanter.

Powerful rotator of thigh and abductor.

Branches from sacral plexus.

Obturator

internus.

Partly within the pelvis and partly at back of hip-joint.

Obturator foramen and membrane. Front of ilium.

Top of great trochanter.

Powerful rotator of thigh and abductor.

Branches from sacral plexus.

Obturator

externus.

Covers outer surface anterior wall of pelvis and hip-joint.

Inner side of obturator foramen. Outer surface obturator membrane.

Root of great trochanter.

Powerful rotator of thigh and abductor.

Obturator.

Superior and inferior gemellii.

Between obturators.

Ischial spine.

Tendon of obturator internus.

Rotates and abducts thigh

Branches from sacral plexus.

Quadratus

femoris

Between inferior gemellus and upper margin adductor magnus.

Tuberosity of ischium.

Quadrate line of femur.

Rotates and abducts thigh.

Branches from sacral plexus.

Biceps femoris, two heads. Outer hamstring.

Posterior and outer aspect of thigh.

(1) Tuberosity of ischium. (2) Linea aspera.

Styloid process of fibula.

Flexes leg and rotates it outwards.

Great sciatic.

Semimembranosus. Inner hamstring.

Posterior and inner aspect of thigh.

Tuberosity of ischium.

inner tuberosity of tibia.

Flexes leg and rotates it inwards.

Great sciatic.

Semitendinosus. Inner hamstring.

Posterior and inner aspect of thigh.

Tuberosity of ischium.

Inner tuberosity of tibia.

Flexes leg and rotates it inwards.

Great sciatic.

Adductor

longus.

Anterior and inner aspect of thigh.

Front of pubes.

Middle linea aspera.

Adducts and flexes thigh.

Obturator.

Adductor

brevis.

Beneath adductor longus.

Ramus of pubes.

Upper part linea aspera.

Adducts and flexes thigh.

Obturator.

Adductor

magnus

Anterior and inner aspect of thigh.

Rami of pubes and ischium.

All linea aspera. Inner condyle. Adductor tubercle.

Adducts and rotates thigh.

Obturator and great sciatic.

Gracilis.

Inner side of thigh.

Rami of pubes and ischium.

Inner and upper surface of tibia.

Adducts thigh and flexes leg.

Obturator.

Pectineus.

Anterior part of upper and inner aspect of thigh.

Ilio-pectineal line of pubes.

Below lesser trochanter.

Adducts and flexes thigh.

Anterior crural and obturator.

Psoas magnus.

In the pelvis on the side of the lumbar region of the spine.

Bodies and transverse processes, last dorsal and all lumbar vertebra

Lesser trochanter.

Flexes thigh on trunk and trunk on thigh.

Third lumbar.

Psoas parvus.

In front of psoas magnus.

Bodies of the last dorsal and first lumbar vertebras.

Ilio-pectineal line and eminence, and fascia iliaca.

Makes tense iliac fascia.

First lumbar.

Iliacus.

Covers whole of iliac fossa.

Iliac fossa and crest, base of sacrum,

Lesser trochanter, shaft of femur and psoas muscle.

Flexes thigh on trunk and trunk on thigh.

Anterior

crural.

Sartorius.

Lies obliquely across front of thigh.

Anterior superior spine of ilium.

Upper inner shaft of tibia.

Crosses leg, flexes it on thigh, and thigh on pelvis.

Anterior

crural.

Tensor fasciae femoris.

From crest of ilium to middle of thigh, outer aspect.

Crest and anterior superior spine and notch of ilium.

Fascia lata below great trochanter and ilio-tibial band.

Acts with gluteus maximus in tightening fascia lata, abducts thigh.

Superior

gluteal.

Rectus femoris.

Middle of the front of femur.

Anterior inferior iliac spine. Upper brim acetabulum.

Anterior tubercle of tibia.

Anterior

crural.

Vastus

externus.

On outer side of femur.

Neck of femur and great trochanter.

Anterior tubercle of tibia.

Quadriceps extensor

Anterior

crural.

Vastus

internus.

On inner side of femur.

Small trochanter, linea aspera.

Anterior tubercle of tibia.

All extend leg. Rectus also flexes thigh.

Anterior

crural.

Crureus.

Front and outer aspect of shaft of femur, under rectus and vastus externus.

Anterior and outer shaft of femur.

Anterior tubercle of tibia.

Anterior

crural.

Tibialis

anticus.

Outer side of tibia.

Outer tuberosity of tibia, upper part of shaft.

Internal cuneiform and first metatarsal bone.

Flexes foot on leg, raises inner border (inversion).

Anterior

tibial.

Extensor longus digitorum.

Outer side of tubialis anticus.

Outer tuberosity of tibia, head of fibula.

Second and third phalanges of toes by four tendons.

Extends toes.

Anterior

tibial.

Extensor longus hallucis.

Between tibialis anticus and extensor longus digitorum.

Middle shaft of tibia.

Dorsal surface, last phalanx of great toe.

Extends great toe.

Anterior

tibial.

Peroneus

tertius.

Lower part of anterior and inner surface of fibula.

Lower third of anterior surface of fibula and interosseous membrane.

Dorsal surface, fifth metatarsal bone.

Flexes foot and raises out border (eversion).

Anterior

tibial.

Peroneus

longus.

Upper part of outer side of leg.

Head and outer surface of shaft of fibula.

Under surface of base of first metatarsal bone.

Extends foot and raises outer border.

Musculocutaneous.

Peroneus

brevis.

Under peroneus longus.

Shaft of fibula below longus.

Dorsal surface, fifth metatarsal bone.

Extends foot and raises outer border.

Musculocutaneous

Gastrocnemius, two heads.

Back of leg, forming greater part of calf.

(1) External condyle of femur. (2) Internal condyle of femur.

Os calcis by tendo Achillis.

Extends foot,bends knee.

Branch from internal popliteal.

Soleus.

Immediately beneath gastrocnemius.

Heads of tibia and fibula.

With gastrocnemius into os calcis by tendo Achillis.

Extends foot.

Branch from internal popliteal.

Plantaris.

Back of knee-joint, very small, long tendon running between gastrocnemius and soleus.

Back of femur, above external condyle.

Os calcis near or with common tendon of gastrocnemius and soleus.

Assists gastrocnemius in extending foot and bending knee.

Branch from internal popliteal.

Popliteus.

Across lower part popliteal space and upper part of tibia.

External condyle of femur by tendon within capsule of knee-joint.

Posterior surface shaft of tibia.

Bends knee, rotates tibia inwards.

Branch from internal popliteal.

Flexor longus hallucis.

Back of fibula.

Posterior surface shaft of fibula.

Last phalanx of great toe, plantar aspect.

Flexes great toe and keeps it to the ground.

Posterior

tibial.

Flexor longus digitorum.

Back of tibia.

Posterior surface of tibia.

By four tendons into last phalanges of four small toes, plantar aspect.

Flexes toes and keeps them to the ground.

Posterior

tibial.

Tibialis

posticus.

Between flexor longus pollicis and flexor longus digitorum. Deepest muscle of leg.

Posterior surface shafts of tibia and fibula.

All tarsal bones except astragalus; second, third, fourth metatarsal, plantar aspect.

Extends foot, inverts it, pulls toes together, presses down outer border.

Posterior

tibial.

Flexor brevis digitorum.

Middle of sole of foot. First layer.

Inner tubercle os calcis and plantar fascia.

First phalanges, four outer toes by four tendons.

Flexes toes.

Internal

plantar.

Abductor

hallucis.

Inner border of foot.

Inner tubercle of os calcis, plantar fascia.

Inner side first phalanx of great toe.

Abducts great toe.

Internal

plantar

Abductor minimi digiti.

Outer border of foot.

Outer tubercle of os calcis, plantar fascia.

Outer side first phalanx of little toe.

Abducts little toe.

External

plantar.

Flexor accessorius, two heads.

Middle of sole of foot. Second layer.

(1) Os calcis, inner side ; os calcis, outer side. (2) Plantar ligament.

Tendons of flexor longus digitorum.

Accessory flexors of toes.

External

plantar.

Lumbricales.

Between tendons of flexor longus digitorum.

Tendons flexor longus digitorum.

Phalanges of four outer toes and extensor tendons.

Flexes proximal phalanx, extonds two terminal phalanges.

External and internal plantar.

Flexor brevis hallucis.

Inner side of sole of foot.

Plantar surface of cuboid and external cuneiform bones.

Base of first phalanx of great toe.

Flexes great toe.

Internal

plantar

Adductor

hallucis.

Obliquely across sole of foot.

Second, third, and fourth metatarsal bones.

Fibular side of base of first phalanx of great toe.

Adducts great toe.

External

plantar.

Transversus

pedis.

Transversely across heads of metatarsal bone

Head of fifth metatarsal bone.

Base of first phalanx of great toe.

Brings edges of foot together, increases curve of transverse arch.

External

plantar.

Flexor brevis minimi digiti.

Metatarsal bone of little toe.

Base of metatarsal bone of little toe.

First phalanx of little toe.

Flexes little toe.

External

plantar.

Extensor brevis digitorum.

Obliquely across dorsum of foot.

Outer and upper part of os calcis.

Four inner toes, dorsal surface.

Extends four inner toes.

Anterior

tibial.

Dorsal interossei, four in number.

Between metatarsal bones.

Sides of metatarsal bones.

Base of corresponding toes and expansions of extensor tendons.

Abducts toes from middle line.

External

plantar.

Plantar interossei, three in number.

Beneath metatarsal bones.

Sides of outer three metatarsal bones.

Base of corresponding toes.

Adducts toes to middle line.

External

plantar.