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Muscles of the Lower Extremity
N/A
168
Anatomy
Undergraduate 1
02/20/2013

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Term
Origin of Gluteus Maximus
Definition
Illium, sacrum, coccyx
Term
Insertion of Gluteus maximus
Definition
Gluetal tuberosity
Term
Action of Gluteus maximus
Definition
Extend and laterally rotate thigh at hip
Term
Innervation of Gluteus Maximus
Definition
Inferior gluteal nerve
Term
Origin of Gluteus Medius
Definition
Ilium
Term
Insertion of Gluteus Medius
Definition
Greater Trochanter
Term
Action of Gluteus Medius
Definition
Abduct and medially rotate thigh
Term
Innervation of Gluteus Medius
Definition
Superior gluteal nerve
Term
Origin of Gluteus Minimus
Definition
Ilium
Term
Insertion of Gluteus Minimus
Definition
Greater Trochanter
Term
Action of Gluteus Minimus
Definition
Abduct and medially rotate thigh
Term
Innervation of Gluteus Minimus
Definition
Superior Gluteal nerve
Term
Origin of Tensor Fascia Latae
Definition
Iliac crest, ASIS
Term
Insertion of Tensor Fascia Latae
Definition
Iliotibial band
Term
Innervation of Tensor Fascia Latae
Definition
Superior Gluteal nerve
Term
Origin of Piriformis
Definition
Anterior sacrum
Term
Insertion of Piriformis
Definition
Greater Trochanter
Term
Action of Piriformis
Definition
Lateral rotation
Term
Innervation of Piriformis
Definition
Nerve to piriformis
Term
Origin of Superior Gemellus
Definition
Spine of Ischium
Term
Insertion of Superior Gemellus
Definition
OI Tendon
Term
Action of Superior Gemellus
Definition
Lateral rotation
Term
Innervation of Superior Gemellus
Definition
Sacral Plexus nerve
Term
Origin of Obturator Internus
Definition
Internal surface of Obturator Membrane
Term
Insertion of Obturator Internus
Definition
Greater Trochanter
Term
Action of Obturator Internus
Definition
Lateral rotation
Term
Innervation of Obturator Internus
Definition
Sacral Plexus nerve
Term
Origin of Inferior Gemellus
Definition
Ischial tuberosity
Term
Insertion of Inferior Gemellus
Definition
OI Tendon
Term
Action of Inferior Gemellus
Definition
Lateral rotation
Term
Innervation of Inferior Gemellus
Definition
Sacral Plexus nerve
Term
Origin of Quadratus femoris
Definition
Ischial tuberosity
Term
Insertion of Quadratus femoris
Definition
Intertrochanteric crest
Term
Action of Quadratus femoris
Definition
Lateral rotation
Term
Innervation of Quadratus femoris
Definition
Sacral Plexus nerve
Term
Origin of Iliopsoas
Definition
Iliac fossa, lumbar vertebrae
Term
Insertion of Iliopsoas
Definition
Lesser trochanter
Term
Action of Iliopsoas
Definition
Flexion of Trunk
Term
Innervation of Iliopsoas
Definition
Femoral nerve
Term
Origin of Sartorius
Definition
ASIS
Term
Insertion of Sartorius
Definition
Upper medial tibia (pes anserinus)
Term
Action of Sartorius
Definition
Felx, abduct, laterally rotate thigh; flex leg
Term
Innervation of Sartorius
Definition
Femoral nerve
Term
Origin of Rectus femoris
Definition
AIIS, aceabulum
Term
Insertion of Rectus Femoris
Definition
Tibial tuberosity
Term
Action of Rectus Femoris
Definition
Flex thigh, extend leg
Term
Innervation of Recus Femoris
Definition
Femoral nerve
Term
Origin of Vastus Lateralis
Definition
Greater Trochanter; linea aspera
Term
Insertion of Vastus Lateralis
Definition
Tibial tuberosity
Term
Action of Vastus Lateralis
Definition
Extend leg
Term
Innervation of Vastus Lateralis
Definition
Femoral nerve
Term
Origin of Vastus Medialis
Definition
Linea aspera
Term
Insertion of Vastus Lateralis
Definition
Tibial tuberosity
Term
Action of Vastus Lateralis
Definition
Extend leg
Term
Innervation of Vastus Lateralis
Definition
Femoral nerve
Term
Origin of Vastus Intermedius
Definition
Upper Femur
Term
Insertion of Vastus Intermedius
Definition
Tibial tuberosity
Term
Action of Vastus Intermedius
Definition
Extend leg
Term
Innervation of Vastus Intermedius
Definition
Femoral nerve
Term
Origin of Gracilis
Definition
Pubis
Term
Insertion of Gracilis
Definition
Pes anserinus/upper medial tibia
Term
Action of Gracilis
Definition
Adduct and flex thigh
Term
Innervation of Gracilis
Definition
Obturator nerve
Term
Origin of Pectineus
Definition
Pubis
Term
Insertion of Pectineus
Definition
Upper Femur
Term
Action of Pectineus
Definition
Adduct and flex thigh
Term
Innervation of Pectineus
Definition
Femoral nerve
Term
Origin of Adductor Longus
Definition
Pubis
Term
Insertion of Adductor Longus
Definition
Linea aspera
Term
Action of Adductor Longus
Definition
Adduct and flex thigh
Term
Innervation of Adductor Longus
Definition
Obturator nerve
Term
Origin of Adductor Brevis
Definition
Pubix
Term
Insertion of Adductor Brevis
Definition
Linea aspera
Term
Action of Adductor Brevis
Definition
Adduct and flex thigh
Term
Innervation of Adductor Brevis
Definition
Obturator nerve
Term
Origin of Adductor Magnus, Adductor Part
Definition
Ischiopubic ramus
Term
Insertion of Adductor Magnus, Adductor Part
Definition
Linea Aspera
Term
Action of Adductor Magnus, Adductor Part
Definition
Adduct and flex thigh
Term
Innervation of Adductor Magnus, Adductor Part
Definition
Obturator nerve
Term
Origin of Adductor Magnus, Extensor Part
Definition
Ischial tuberosity
Term
Insertion of Adductor Magnus, Extensor Part
Definition
Adductor tubercle
Term
Action of Adductor Magnus, Extensor Part
Definition
Extend thigh
Term
Innervation of Adductor Magnus, Extensor Part
Definition
Sciatic nerve
Term
Origin of Semitendinosus
Definition
Ischial tuberosity
Term
Insertion of Semitendinosus
Definition
Upper medial tibia/ pes anserinus
Term
Action of Semitendinosus
Definition
Extend thigh, flex leg
Term
Innervation of Semitendinosus
Definition
Sciatic
Term
Origin of Semimembranosus
Definition
Ischial tuberosity
Term
Insertion of Semimembranosus
Definition
Medial condyle of tibia
Term
Action of Semimembranosus
Definition
Extend thigh, flex leg
Term
Innervation of Semimembranosus
Definition
Sciatic nerve
Term
Origin of Biceps Femoris, long head
Definition
Ischial tuberosity
Term
Insertion of Biceps Femoris, long head
Definition
Head of fibula
Term
Action of Biceps Femoris, long head
Definition
Extend thigh, flex leg
Term
Innervation of Biceps Femoris, long head
Definition
Sciatic nerve
Term
Origin of Biceps Femoris, short head
Definition
Linea aspera
Term
Action of Biceps Femoris, short head
Definition
Laterally rotate leg at knee
Term
Innervation of Biceps Femoris, short head
Definition
Sciatic nerve
Term
Origin of Tibialis Anterior
Definition
Upper lateral tibia
Term
Insertion of Tibialis Anterior
Definition
Medial cuneiform, 1st Metatarsal
Term
Action of Tibialis Anterior
Definition
Dorsiflex and invert foot
Term
Innervation of Tibialis Anterior
Definition
Deep Fibularis nerve
Term
Origin of Extensor Hallucis Longus
Definition
Middle fibula
Term
Insertion of Extensor Hallucis Longus
Definition
Distal phalanx of toe 1
Term
Action of Extensor Hallucis Longus
Definition
Extends big toe
Term
Innervation of Extensor Hallucis Longus
Definition
Deep fibularis nerve
Term
Origin of Extensor digitorum longus
Definition
Lateral condyle of tibia, upper fibula
Term
Insertion of Extensor digitorum longus
Definition
Toes 2 through 5
Term
Action of Extensor digitorum longus
Definition
Extends toes 2 through 5
Term
Innervation of Extensor digitorum longus
Definition
Deep fibular nerve
Term
Origin of Fibularis Tertius
Definition
Lower fibula
Term
Insertion of Fibularis Tertius
Definition
5th metatarsal
Term
Action of Fibularis Tertius
Definition
Dorsiflex and evert foot
Term
Innervation of Fibularis Tertius
Definition
Deep fibular nerve
Term
Origin of Fibularis Longus
Definition
Upper fibula
Term
Insertion of Fibularis longus
Definition
Medial cuneiform, 1st metatarsal
Term
Action of Fibularis longus
Definition
Evert foot
Term
Innervation of Fibularis longus
Definition
Superficial fibular nerve
Term
Origin of Fibularis brevis
Definition
Lower fibula
Term
Insertion of Fibularis brevis
Definition
Fifth metatarsal
Term
Action of Fibularis brevis
Definition
Evert foot
Term
Innervation of Fibularis brevis
Definition
Superficial fibular nerve
Term
Origin of Gastrocnemius
Definition
Lateral and medial condyles of femur
Term
Insertion of Gastrocnemius
Definition
Calcaneus
Term
Action of Gastrocnemius
Definition
Plantar flex foot
Term
Innervation of Gastrocnemius
Definition
Tibial nerve
Term
Origin of Soleus
Definition
Upper fibula and upper tibia
Term
Insertion of Soleus
Definition
Calcaneus
Term
Action of Soleus
Definition
Plantar flex foot
Term
Innervation of Soleus
Definition
Tibial nerve
Term
Origin of Plantaris
Definition
Above lateral condyle of femur
Term
Insertion of Plantaris
Definition
Calcaneus
Term
Action of Plantaris
Definition
Plantar flex foot
Term
Innervation of Plantaris
Definition
Tibial nerve
Term
Origin of Tibialis Posterior
Definition
Upper fibula and tibia
Term
Insertion of Tibialis Posterior
Definition
Tarsals, metatarsals 2 through 4
Term
Action of Tibialis Posterior
Definition
Invert foot
Term
Innervation of Tibialis Posterior
Definition
Tibial nerve
Term
Origin of Flexor Digitorum Longus
Definition
Middle Tibia
Term
Insertion of Flexor Digitorum Longus
Definition
Distal Phalanx of Toes 2 through 5
Term
Action of Flexor Digitorum Longus
Definition
Flexs toes 2 through 5
Term
Innervation of Flexor Digitorum Longus
Definition
Tibial nerve
Term
Origin of Flexor Hallucis Longus
Definition
Middle fibula
Term
Insertion of Flexor Hallucis Longus
Definition
Distal Phalanx of Toe 1
Term
Action of Flexor Hallucis Longus
Definition
Flex Toe 1
Term
Innervation of Flexor Hallucis Longus
Definition
Tibial nerve
Term
Action of Extensor Digitorum Brevis
Definition
Extend toes 1 through 4
Term
Innervation of Extensor Digitorum Brevis
Definition
Deep fibular nerve
Term
Action of Abductor hallucis
Definition
Abduct big toe
Term
Innervation of Abductor hallucis
Definition
Median plantar nerve
Term
Action of Flexor digitorum brevis
Definition
Flex toes 2 through 5
Term
Innervation of Flexor digitorum brevis
Definition
Median plantar nerve
Term
Action of Abductor digiti minimi
Definition
Abducts toe 5
Term
Innervation of Abductor digiti minimi
Definition
Lateral plantar nerve
Term
Action of Quadratus plantae
Definition
Flex toes 2 through 5
Term
Innervation of Quadratus plantae
Definition
Lateral Plantar Nerve
Term
Action of Lumbricals
Definition
Flex toes 2 through 5
Term
Innervation of Lumbricals
Definition
Median and Lateral plantar nerves
Term
Action of Flexor hallucis brevis
Definition
Flex toe 1
Term
Innervation of Flexor hallucis brevis
Definition
Median Plantar nerve
Term
Action of Adductor hallucis
Definition
Adduct toe 1
Term
Innervation of Adductor Hallucis
Definition
Lateral plantar nerve
Term
Action of Flexor digiti minimi brevis
Definition
Flex toe 5
Term
Innervation of Flexor digiti minimi brevis
Definition
Lateral plantar nerve
Term
Action of Plantar interrosei
Definition
Adduct toes 3 to 5
Term
Innervation of Plantar Interossei
Definition
Lateral plantar nerve
Term
Action of Dorsal interossei
Definition
Abduct toes 2 to 4
Term
Innervation of Dorsal interossei
Definition
Lateral plantar nerve
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