Foot Muscles Flashcards
Extensor Digitorum Brevis
O: Dorsal surface of calcaneus
I: Proximal phalanges
A: Extend toes
N: Deep fibular nerve
Extensor Hallucis Brevis
O: Doral surface of calcaneus
I: Base of proximal phalanx of hallux (big toe)
A: Extend hallux
N: Deep fibular nerve
Abductor Hallucis
O: Calcaneus
I: Proximal phalanx of the hallux
A: Flex and abduct big toe
N: Medial plantar nerve
Flexor Digitorum Brevis
O: Calcaneus
I: Middle phalanx of 4 toes (2-5)
A: Flex lateral 4 toes
N: Medial plantar nerve
Abductor Digiti Minimi
O: Calcaneus
I: Proximal phalanx of 5th toe
A: Flex and abduct 5th toe
N: Lateral plantar nerve
Quadratus Plantae
O: Calcaneus
I: Tendons of Flexor digitorum longus
A: Flex lateral 4 toes
N: Lateral plantar nerve
Lumbricals
O: Tendos of Flexor digitorum longus
I: Extensor expansions
A: Extend interphalangeal joints, flex metatarsalphalangeal joints
N: Lumbrical 1: medial plantar nerve, Lumbricals 2,3,4: Lateral plantar nerve
Flexor Hallucis Brevis
O: Cuboid and lateral cuneiform
I: Proximal phalanx of hallux
A: Flex metatarsalphalangeal joint of hallum
N: Medial plantar nerve
Adductor Hallucis
O: Metatarsals (oblique and transverse heads)
I: Proximal phalanx of hallux
A: Adducts hallux
N: Lateral plantar nerve
Flexor Digiti Minimi
O: 5th metatarsal
I: Proximal phalanx of 5th toe
A: Flex metatarsalphalangeal joint of 5th toe
N: Lateral plantar nerve
Plantar Interossei
O: Metatarsals
I: Proximal phalanges, extensor expansion
A: Flex MTP joints, extend IP joints, addcut toes
N: Lateral plantar nerve
Dorsal Interossei
O: Metatarsals
I: Proximal phalanges and extensor expansion
A: Flex MTP joints, extend IP joints, abduct toes
N: Lateral plantar nerve
