Tibialis Posterior Plantar flexes the ankle, inverts the foot Extensor Digitorum longus Originates at lateral condyle of tibia, proximal anterior shaft of fibula, interosseous membrane Tibialis Posterior This muscle prevents the arch from collapsing Extensor hallucis longus Dorsiflexes the ankle, inverts the foot, extends 1st toe Popliteus Also known as the "key of the knee" Dorsal Interossei Originates on adjacent sides of all metatarsals Tibialis Anterior Inverts the foot, dorsiflexes ankle Gastrocnemius Greek name translates to the stomach of the leg Quadratus Plantae Inserts on posterior lateral aspect of flexor digitorum longus tendon Tibialis Posterior Innervated by tibial nerve L4,5,S1 Flexor Digitorum Longus Inverts the foot, flexes 2nd-5th toes, plantar flexes ankle Plantaris Inserts on calcaneus via calcaneal tendon Fibularis Brevis This muscle is responsible for 63% of the power in everting the foot Extensor Digitorum Brevis Extends 2nd-4th toes Extensor Hallucis Brevis Inserts at proximal phalanx of 1st toe Flexor Digitorum Brevis Flexes 2nd- 5th toes, plantar flexes ankle, inverts foot Adductor Hallucis Inserts on lateral surface of proximal phalanx of 1st toe Extensor Digitorum Longus Extends 2nd-5th toes, dorsiflexes ankle, everts the foot Flexor Hallucis Longus Originates on middle half of posterior fibula Gastrocnemius Innvervated by tibial nerve S1,2 Soleus Nicknamed the "second heart" Plantar Interossei Innervated by Tibial nerve S1,2 Fibularis Longus Inserts at base of first metatarsal and medial cuneiform Lumbricals of the foot Name translates to earthworm due to it's shape Fibularis Longus Originates at head of fibula and proximal two thirds of lateral fibula Fibularis Brevis Everts the foot, plantar flexes the ankle Plantaris Originates on calcaneus via calcaneal tendon Flexor digiti minimi brevis Innervated by tibial S1,2 Flexor Digiti Minimi Brevis Inserts at base of proximal phalanx of 5th toe Extensor Hallucis Longus This muscle splits into 3 tendons in 15% of people Extensor Digitorum Brevis Extends the 2nd- 4th toes Dorsal Interossei Monkey's also have these muscles Adductor Hallucis Inserts on lateral surface of base of proximal phalanx of 1st toe Abductor Hallucis Innervated by Tibial nerve L4, 5, S1 Soleus Originates at soleal line, proximal posterior surface of tibia, and posterior aspect of head of fibula Quadratus Plantae This muscle is evolving and getting bigger in humans overtime Flexor Hallucis Brevis Innervated by Tibial nerve L4,5,S1 Abductor Digiti minimi Flexes 5th toe, abducts 5th toe Flexor Hallucis Brevis Originates on plantar surfaces of cuboid and lateral cuneiform Lumbricals of foot Originates on tendons of flexor digitorum longus
Tibialis Anterior It is the strongest dorsiflexor of the ankle Flexor Digitorum Brevis Originates on medial process of calcaneus and plantar aponeurosis Flexor Digitorum Brevis Inserts on middle phalanges of 2nd-5th toes Abductor Hallucis Inserts on proximal phalanx of 1st toe and medial sesamoid bone Flexor Hallucis Brevis Inserts on proximal phalanx of 1st toe Abductor Digiti Minimi Innervated by Tibial nerve S1,2 Popliteus Innervated by tibial nerve L4,5,S1 Flexor Hallucis Longus Innervated by tibial nerve L5, S1, 2 Extensor Hallucis Longus Innervated by deep fibular nerve L4,5,S1 Tibialis Posterior Plantar flexes the ankle, inverts the foot Extensor Digitorum longus Originates at lateral condyle of tibia, proximal anterior shaft of fibula, interosseous membrane Tibialis Posterior This muscle prevents the arch from collapsing Extensor hallucis longus Dorsiflexes the ankle, inverts the foot, extends 1st toe Popliteus Also known as the "key of the knee" Dorsal Interossei Originates on adjacent sides of all metatarsals Tibialis Anterior Inverts the foot, dorsiflexes ankle Gastrocnemius Greek name translates to the stomach of the leg Quadratus Plantae Inserts on posterior lateral aspect of flexor digitorum longus tendon Tibialis Posterior Innervated by tibial nerve L4,5,S1 Flexor Digitorum Longus Inverts the foot, flexes 2nd-5th toes, plantar flexes ankle Plantaris Inserts on calcaneus via calcaneal tendon Fibularis Brevis This muscle is responsible for 63% of the power in everting the foot Extensor Digitorum Brevis Extends 2nd-4th toes Extensor Hallucis Brevis Inserts at proximal phalanx of 1st toe Flexor Digitorum Brevis Flexes 2nd- 5th toes, plantar flexes ankle, inverts foot Adductor Hallucis Inserts on lateral surface of proximal phalanx of 1st toe Extensor Digitorum Longus Extends 2nd-5th toes, dorsiflexes ankle, everts the foot Flexor Hallucis Longus Originates on middle half of posterior fibula Gastrocnemius Innvervated by tibial nerve S1,2 Soleus Nicknamed the "second heart" Plantar Interossei Innervated by Tibial nerve S1,2 Fibularis Longus Inserts at base of first metatarsal and medial cuneiform Lumbricals of the foot Name translates to earthworm due to it's shape Fibularis Longus Originates at head of fibula and proximal two thirds of lateral fibula Fibularis Brevis Everts the foot, plantar flexes the ankle Plantaris Originates on calcaneus via calcaneal tendon Flexor digiti minimi brevis Innervated by tibial S1,2 Flexor Digiti Minimi Brevis Inserts at base of proximal phalanx of 5th toe Extensor Hallucis Longus This muscle splits into 3 tendons in 15% of people Extensor Digitorum Brevis Extends the 2nd- 4th toes Dorsal Interossei Monkey's also have these muscles Adductor Hallucis Inserts on lateral surface of base of proximal phalanx of 1st toe Abductor Hallucis Innervated by Tibial nerve L4, 5, S1 Soleus Originates at soleal line, proximal posterior surface of tibia, and posterior aspect of head of fibula Quadratus Plantae This muscle is evolving and getting bigger in humans overtime Flexor Hallucis Brevis Innervated by Tibial nerve L4,5,S1 Abductor Digiti minimi Flexes 5th toe, abducts 5th toe Flexor Hallucis Brevis Originates on plantar surfaces of cuboid and lateral cuneiform Lumbricals of foot Originates on tendons of flexor digitorum longus Tibialis Anterior It is the strongest dorsiflexor of the ankle Flexor Digitorum Brevis Originates on medial process of calcaneus and plantar aponeurosis Flexor Digitorum Brevis Inserts on middle phalanges of 2nd-5th toes Abductor Hallucis Inserts on proximal phalanx of 1st toe and medial sesamoid bone Flexor Hallucis Brevis Inserts on proximal phalanx of 1st toe Abductor Digiti Minimi Innervated by Tibial nerve S1,2 Popliteus Innervated by tibial nerve L4,5,S1 Flexor Hallucis Longus Innervated by tibial nerve L5, S1, 2 Extensor Hallucis Longus Innervated by deep fibular nerve L4,5,S1
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A-Plantar flexes the ankle, inverts the foot
O-Originates at lateral condyle of tibia, proximal anterior shaft of fibula, interosseous membrane
M-This muscle prevents the arch from collapsing
A-Dorsiflexes the ankle, inverts the foot, extends 1st toe
M-Also known as the "key of the knee"
O-Originates on adjacent sides of all metatarsals
A-Inverts the foot, dorsiflexes ankle
M-Greek name translates to the stomach of the leg
I-Inserts on posterior lateral aspect of flexor digitorum longus tendon
N-Innervated by tibial nerve L4,5,S1
A-Inverts the foot, flexes 2nd-5th toes, plantar flexes ankle
I-Inserts on calcaneus via calcaneal tendon
M-This muscle is responsible for 63% of the power in everting the foot
A-Extends 2nd-4th toes
I-Inserts at proximal phalanx of 1st toe
A-Flexes 2nd-5th toes, plantar flexes ankle, inverts foot
I-Inserts on lateral surface of proximal phalanx of 1st toe
A-Extends 2nd-5th toes, dorsiflexes ankle, everts the foot
O-Originates on middle half of posterior fibula
N-Innvervated by tibial nerve S1,2
M-Nicknamed the "second heart"
N-Innervated by Tibial nerve S1,2
I-Inserts at base of first metatarsal and medial cuneiform
M-Name translates to earthworm due to it's shape
O-Originates at head of fibula and proximal two thirds of lateral fibula
A-Everts the foot, plantar flexes the ankle
O-Originates on calcaneus via calcaneal tendon
N-Innervated by tibial S1,2
I-Inserts at base of proximal phalanx of 5th toe
M-This muscle splits into 3 tendons in 15% of people
A-Extends the 2nd-4th toes
M-Monkey's also have these muscles
I-Inserts on lateral surface of base of proximal phalanx of 1st toe
N-Innervated by Tibial nerve L4, 5, S1
O-Originates at soleal line, proximal posterior surface of tibia, and posterior aspect of head of fibula
M-This muscle is evolving and getting bigger in humans overtime
N-Innervated by Tibial nerve L4,5,S1
A-Flexes 5th toe, abducts 5th toe
O-Originates on plantar surfaces of cuboid and lateral cuneiform
O-Originates on tendons of flexor digitorum longus
M-It is the strongest dorsiflexor of the ankle
O-Originates on medial process of calcaneus and plantar aponeurosis
I-Inserts on middle phalanges of 2nd-5th toes
I-Inserts on proximal phalanx of 1st toe and medial sesamoid bone
I-Inserts on proximal phalanx of 1st toe
N-Innervated by Tibial nerve S1,2
N-Innervated by tibial nerve L4,5,S1
N-Innervated by tibial nerve L5, S1, 2
N-Innervated by deep fibular nerve L4,5,S1
