Flexor Digitorum Longus Originates on the middle, posterior surface of tibia Flexor Hallucis Longus Inserts on distal phalanx of first toe Extensor Hallucis Longus Inserts on distal phalanx of first toe Semimembranosus The wider, and deeper muscle of the hamstring group Plantaris Tibial L4, 5, S1, (2) Flexor Hallucis Brevis Flex the first toe Tensor Fasciae Latae Superior gluteal L4, 5, S1 Lumbricals of the foot First: Tibial L4,5, S1; Second through fourth: Tibial L(4), (5), S1,2 Sartorius The longest muscle in the body Plantar Interossei Adducts 3rd-5th toes and flexes 3rd-5th toes Adductor Hallucis Adduct the first toe, assist to maintain transverse arch of foot, and assist to flex the first toe Vastus Medialis Forms “teardrop” shape at distal portion of medial thigh Tibialis Anterior Inserts at medial cuneiform and base of the first metatarsal Rectus Femoris The only quadricep muscle that also flexes hip Popliteus Inserts on proximal, posterior aspect of tibia Flexor Digiti Minimi Brevis Originate on Base of fifth metatarsal Extensor Digitorum Brevis Extends the second through fourth toes Semitendinosus Sciatic L4,5,S1,2 Fibularis Brevis Originates at the distal two-thirds of lateral fibula Gracilis Obturator L2,3,4 Vastus Lateralis Femoral L2,3,4 Gastrocnemius Has two heads and cross two joints (the knee and ankle) Soleus Only plantar flexes the ankle Abductor Hallucis Insert at proximal phalanx of first toe and medial sesamoid bone Abductor Digiti Minimi Originates on lateral process of calcaneus and plantar aponeurosis Extensor Digitorum Longus Originates at the lateral condyle of tibia; proximal, anterior shaft of fibula, and interosseous membrane Extensor Hallucis Brevis Extend the first toe Vastus Intermedius Originates at the anterior and lateral shaft of the femur Quadratus Plantae Inserts on posterior, lateral aspect of flexor digitorum longus tendon Fibularis Longus Inserts at the base of the first metatarsal and medial cuneiform Dorsal Interossei Abduct 2nd- 4th toes and Flex 2nd-4th toes Biceps Femoris Long head: Sciatic L5, S1,2,3; Short head: Sciatic L5, S1,2 Tibialis Posterior The only muscle in the flexors of the ankle and toes group that does not flex Flexor Digitorum Brevis The center muscle of the dorsal surface of the foot Flexor Digitorum Longus Originates on the middle, posterior surface of tibia Flexor Hallucis Longus Inserts on distal phalanx of first toe Extensor Hallucis Longus Inserts on distal phalanx of first toe Semimembranosus The wider, and deeper muscle of the hamstring group Plantaris Tibial L4, 5, S1, (2) Flexor Hallucis Brevis Flex the first toe Tensor Fasciae Latae Superior gluteal L4, 5, S1 Lumbricals of the foot First: Tibial L4,5, S1; Second through fourth: Tibial L(4), (5), S1,2 Sartorius The longest muscle in the body Plantar Interossei Adducts 3rd-5th toes and flexes 3rd-5th toes Adductor Hallucis Adduct the first toe, assist to maintain transverse arch of foot, and assist to flex the first toe Vastus Medialis Forms “teardrop” shape at distal portion of medial thigh Tibialis Anterior Inserts at medial cuneiform and base of the first metatarsal Rectus Femoris The only quadricep muscle that also flexes hip Popliteus Inserts on proximal, posterior aspect of tibia Flexor Digiti Minimi Brevis Originate on Base of fifth metatarsal Extensor Digitorum Brevis Extends the second through fourth toes Semitendinosus Sciatic L4,5,S1,2 Fibularis Brevis Originates at the distal two-thirds of lateral fibula Gracilis Obturator L2,3,4 Vastus Lateralis Femoral L2,3,4 Gastrocnemius Has two heads and cross two joints (the knee and ankle) Soleus Only plantar flexes the ankle Abductor Hallucis Insert at proximal phalanx of first toe and medial sesamoid bone Abductor Digiti Minimi Originates on lateral process of calcaneus and plantar aponeurosis Extensor Digitorum Longus Originates at the lateral condyle of tibia; proximal, anterior shaft of fibula, and interosseous membrane Extensor Hallucis Brevis Extend the first toe Vastus Intermedius Originates at the anterior and lateral shaft of the femur Quadratus Plantae Inserts on posterior, lateral aspect of flexor digitorum longus tendon Fibularis Longus Inserts at the base of the first metatarsal and medial cuneiform Dorsal Interossei Abduct 2nd- 4th toes and Flex 2nd-4th toes Biceps Femoris Long head: Sciatic L5, S1,2,3; Short head: Sciatic L5, S1,2 Tibialis Posterior The only muscle in the flexors of the ankle and toes group that does not flex Flexor Digitorum Brevis The center muscle of the dorsal surface of the foot
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O-Originates on the middle, posterior surface of tibia
I-Inserts on distal phalanx of first toe
I-Inserts on distal phalanx of first toe
M-The wider, and deeper muscle of the hamstring group
N-Tibial L4, 5, S1, (2)
A- Flex the first toe
N-Superior gluteal L4, 5, S1
N-First: Tibial L4,5, S1; Second through fourth: Tibial L(4), (5), S1,2
M-The longest muscle in the body
A-Adducts 3rd-5th toes and flexes 3rd-5th toes
A- Adduct the first toe, assist to maintain transverse arch of foot, and assist to flex the first toe
M-Forms “teardrop” shape at distal portion of medial thigh
I-Inserts at medial cuneiform and base of the first metatarsal
M-The only quadricep muscle that also flexes hip
I-Inserts on proximal, posterior aspect of tibia
O-Originate on Base of fifth metatarsal
A-Extends the second through fourth toes
N-Sciatic L4,5,S1,2
O-Originates at the distal two-thirds of lateral fibula
N-Obturator L2,3,4
N-Femoral L2,3,4
M-Has two heads and cross two joints (the knee and ankle)
A-Only plantar flexes the ankle
I-Insert at proximal phalanx of first toe and medial sesamoid bone
O-Originates on lateral process of calcaneus and plantar aponeurosis
O-Originates at the lateral condyle of tibia; proximal, anterior shaft of fibula, and interosseous membrane
A-Extend the first toe
O-Originates at the anterior and lateral shaft of the femur
I-Inserts on posterior, lateral aspect of flexor digitorum longus tendon
I-Inserts at the base of the first metatarsal and medial cuneiform
A-Abduct 2nd-4th toes and Flex 2nd-4th toes
N-Long head: Sciatic L5, S1,2,3; Short head: Sciatic L5, S1,2
M-The only muscle in the flexors of the ankle and toes group that does not flex
M-The center muscle of the dorsal surface of the foot
