foot muscles Flashcards
what muscles are on dorsal aspect and what are their innervation
-extensor hallucis brevis
-extensor digitorum brevis
deep fibular N
what muscles are in plantar layer 1
-abductor hallucis
-abductor digiti minimi
-flexor digitorum brevis
what muscles are in plantar layer 2
-quadratus plantae
-lumbricals (4)
what muscles are in plantar layer 3
-adductor hallucis
-flexor hallucis brevis
-flexor digiti minimi brevis
what muscles are in plantar layer 4
-plantar interossei
-dorsal interossei
extensor hallucis brevis origin insertion
o - calcaneus
i - proximal phalanx of 1st toe
extensor hallucis brevis action
extend 1st toe at MTP joint
extensor digitorum brevis origin insertion
o - calcaneus
i - middle phalanx of toes 2-5
extensor digitorum brevis action
extend toes 2-5 at MTP and PIP joints
abductor hallucis origin insertion
o - calcaneus and plantar aponeurosis
i - medial proximal phalax of 1st toe
abductor hallucis actions
abducts first toe at MTP joint
abductor digiti minimi origin insertion
o - calcaneus and plantar aponeurosis
i - lateral proximal phalanx of 5th toe
abductor digiti minimi actions
abducts 5th toe at MTP joint
flexor digitorum brevis origin insertion
o - calcaneus and plantar aponeurosis
i - middle phalanx of toes 2-5
flexor digitorum brevis action
flexes toes 2-5 at MTP and PIP joints