Term | Definition |
abductor hallucis origin | medical tubercle of tuberosity of calcaneus; flexor retinaculum; plantar aponeuorsis |
abductor hallucis insertion | medial aspect of base of proximal phalanx of 1st digit(hallux) |
abductor hallucis action | abducts & flexes 1st digit (hallux) |
abductor hallucis innervation | medial plantar nerve |
abductor hallucis artery | medial plantar artery |
abductor hallucis | 1st layer of plantar foot muscle; |
flexor digitorum origin | medial tubercle of tuberosity of calcaneus; plantar aponeurosis; intermuscular septa |
flexor digitorum brevisjinsertion | both sides of middle phalanges of lateral 4 digits |
flexor digitorum brevis action | flexes lateral 4 digits |
flexor digitorum brevis innervation | medial plantar nerve |
flexor digitorum brevis artery | medial planter artery |
flexor digitorum brevis | 1st layer of plantar foot muscle; medial orientation |
abductor digiti minimi | 1st layer of plantar foot muscle; lateral orientation |
abductor digti minimi origin | medial & lateral tubercles of tuberosity of calcaneus; plantar aponeurosis; intermuscular septa |
abductor digti minimi insertion | lateral side of base of proximal phalanx of 5th digit |
abductor digti minimi innervation | lateral plantar nerve |
abductor digti minimi artery | lateral plantar artery |
abductor digti minimi action | abducts and flexes little toes(5th digit) |
quadratus plantae | 2nd layer of plantar foot muscle; |
quadratus plantae origin | medial surface and lateral margin of plantar surface of calcaneus |
quadratus plantae insertion | posterolateral margin of tendon of flexor digitorum longus |
quadratus plantae action | assists flexor digitorum longus in flexing lateral four digits |
quadratus plantae innervation | lateral plantar nerve |
quadratus plantae artery | lateral plantar artery |
lumbricals | 2nd layer of plantar foot muscle; digits 2-5 |
lumbricals origin | tendons of flexor digitorum longus |
lumbricals insertion | medial aspect of expansion over lateral 4 digits |
lumbricals action | flex proximal phalanges, extend middle & distal phalanges of lateral 4 digits |
lumbricals innervation | 2nd digit: medial plantar nerve; digits 3-5: lateral plantar nerve |
lumbricals artery | medial & lateral plantar nerve arteries |
flexor hallucis brevis | 3rd layer of plantar foot muscle |
flexor hallucis brevis origin | plantar surfaces of cuboid & lateral cuneiforms |
flexor hallucis brevis insertion | both sides of base of proximal phalanx of 1st digit |
flexor hallucis brevis action | flexes proximal phalanx of 1st digit |
flexor hallucis brevis innervation | medial plantar nerve |
flexor hallucis brevis artery | medial plantar artery |
adductor hallucis | 3rd layer of plantar foot muscle |
adductor hallucis origin | oblique head: bases of metatarsals 2-4
transverse head: plantar ligaments of metatarsal phalangeal joints |
adductor hallucis insertion | tendons of both heads attach to lateral side of base of proximal phalanx of 1st digit |
adductor hallucis action | adducts 1st digit
assists in transverse arch of foot by metatarsals medially |
adductor hallucis innervation | deep branch of lateral plantar nerve |
adductor hallucis artery | lateral plantar artery |
flexor digiti minimi brevis | 3rd layer of plantar foot muscle |
flexor digiti minimi brevis origin | base of 5th metatarsal |
flexor digiti minimi brevis insertion | base of proximal phalanx of 5th digit |
flexor digiti minimi brevis action | flexes proximal phalanx of 5th digit, assisting with flexion |
flexor digiti minimi brevis innervation | supericial branch of lateral plantar nerve |
flexor digiti minimi brevis artery | lateral plantar artery |
plantar interossei | 4th layer foot muscles; 3 total |
plantar interossei origin | plantar aspect of medial sides of shafts of metatarsals 3-5 |
plantar interossei insertion | medial sides of bases of phalanges of 3rd-5th |
plantar interossei action | adduct digits 3-5 & flex metatarsal phalangeal joints |
plantar interossei innervation | lateral plantar nerve |
plantar interossei artery | lateral plantar artery |
dorsal interossei | 4th layer foot muscles; 4 total |
dorsal interossei origin | adjacent sides of shafts of metatarsals 1-5 |
dosal interossei insertion | 1st= medial side of proximal phalanx of 2nd digit |
dorsal interossei action | 2nd-4th = lateral sides of 2nd-4th digits |
dorsal interossei innervation | lateral plantar nerve |
dorsal interossei artery | lateral plantar artery |
plantar aponeurosis | |
plantar aponeurosis compartments (medial, lateral, central | |
plantar aponeurosis adductor inerosseous | |
medial plantar nerve origin | |
medial plantar nerve distribution | |
lateral plantar nerve origin | |
lateral plantar nerve distribution | |
saphenous nerve origin | |
saphenous nerve distribution | |
medial calcaneal nerve origin | |
medial calcaneal nerve distribution | |