Calf Muscles Origins and Insertions Flashcards
Tibialis Anterior
O: Upper lateral tibia, Interosseous Membrane
I: Medial Cuneiform
A: DF ankle, Invert intertarsal and subtalar joint
Inner: Deep Fibular nerve
Extensor Digitorum Longus
O: Anterior fibular, Lateral tibial condyle, IO membrane
I: Base of middle & distal phalanges 2-5
A: DF ankle, Evert IT, EXT metatarsal-phalangeal
Inner: Deep fibular nerve
Extensor Hallucis Longus
O: Medial fibula, IO membrane
I: Base of 1st distal phalanx
A: DF ankle, Evert/invert IT, EXT MTP/IP 1
Inner: Deep Fibular nerve
Fibularis (peroneus) longus
O: Proximal lateral fibula, head of fibula
I: Medial cuneiform, base of 1st metatarsal
A: Plantarflex ankle, Evert IT
Inner: Superficial fibular nerve
Fibularis (peroneus) brevis
O: Distal lateral fibula, IO membrane
I: Base of 5th MT
A: PF ankle, Evert IT
Inner: Superficial fibular nerve
Fibularis (peroneus) tertius
O: Distal anterior fibula with Extensor digitorum longus
I: Base of 5th MT
A: DF ankle, Evert IT
Inner: Deep fibular nerve
Soleus
O: Soleal line of tibia, head/neck of fibula
I: Calcaneal tuberosity via achilles tendon
A: PF ankle, Invert IT
Inner: Tibial nerve
Gastrocnemius
O: Medial & Lateral epicondyle femur
I: Calcaneal tuberosity via achilles tendon
A: PF ankle, Invert IT, Flex knee
Inner: Tibial nerve
Plantaris
O: Lateral Epicondyle femur
I: Calcaneal tuberosity via achilles tendon
A: Small contributor to PF ankle, Invert IT, Flex Knee
Inner: Tibial nerve
Tibialis Posterior
O: Posterior tibia, IO membrane, Posterior fibula
I: Navicular, All cuneiforms, Base of MT 2-4
A: PF ankle, Invert IT
Inner: Tibial nerve
Flexor Digitorum Longus
O: middle posterior tibia
I: Base of dial phalanges 2-5
A: PF ankle, Invert IT, Flex MTP, Flex IP 2-5
Inner: Tibial nerve
Flexor Hallucis Longis
O: Distal Posterior fibula
I: Base of 1st distal phalanx
A: PF ankle, Invert IT, Flex MTP 1, Flex IP 1
Inner: Tibial nerve
Extensor Digitorum Brevis
O: Dorsal surface calcaneus
I: Base of middle phalanges 2-4
A: Ext MTP 2-4, Ext proximal interphalangeal 2-4
Inner: Deep fibular nerve
Extensor Hallucis Brevis
O: Dorsal surface calcaneus
I: Base of 1st proximal phalanx
A: Ext MTP 1
Inner: Deep fibular nerve
