Musculature of the Foot Flashcards
how many layers are there of foot muscles
4 and muscles on the dorsum side
what muscles are in layer 1
abductor hallucis
flexor digitorum brevis
abductor digiti minimi
abductor hallucis origin
calcaneal tuberosity (medial process)
abductor hallucis insertion
1st toes (base of proximal phalanx via the medial sesamoid)
abductor hallucis innervation
medial plantar nerve (S1,S2)
abductor hallucis action
great toe metatarsophalangeal joint flexion and ABD
flexor digitorum brevis origin
calcaneal tuberosity (medial tubercle)
plantar aponeurosis
flexor digitorum brevis
2nd-5th toes (sides of middle phalanges)
flexor digitorum brevis innervation
medial plantar nerve (S1,S2)
flexor digitorum brevis action
flexes the MTP and PIP joints of 2nd-5th toes
supports the longitudinal arch
abductor digiti minimi origin
calcaneal tuberosity (medial tubercle)
plantar aponeurosis
abductor digiti minimi insertion
5th toes base of proximal phalanx
5th metatarsal at tuberosity
abductor digiti minimi innervation
lateral plantar nerve (S1-S3)
abudctor digiti minimi action
5th digit metatarsophalangeal joint ABD and flexion
supports longitudinal arch
muscles in layer 2 of the foot
quadratus plantae
lumbricals (4)
quadratus plantae origin
calcaneal tuberosity (medial and plantar borders on plantar side)
quadratus plantar insertion
flexor digitorum longus tendon (lateral border)
quadratus plantar innvervation
lateral plantar nerve (S1-S3)
quadratus plantar action
redirects and augments the pull of flexor digitorum longus
lumbricals origin
tendons of flexor digitorum longus
lumbricals insertion
2nd-5th toes (@dorsal aponeurosis)