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Foot Muscles

HintAnswer
abductor hallucis:origin medial tubercle of calcaneous, flexor retinaculum and plantar aponeurosis
abductor hallucis: insertion medial side of base of proximal phalynx of first digit
abductor hallucis: action abducts and flexes great toe
abductor hallucis: innervation medial plantar nerve
flexor digitorum brevis: origin medial tubercle of calcaneal tuberosity, plantar aponeurosis, and intermuscular septa
flexor digitorum brevis: insertion both sides of middle phalanges of lateral 4 digits
flexor digitorum brevis: action flexes lateral 4 digits
flexor digitorum brevis: innervation medial plantar nerve
abductor digiti minimi: origin medial and lateral tubercles of tuberosity of calcaneous, plantar aponeurosis, and intermuscular septa
abductor digit minimi: insertion lateral side of base of proximal phalanx of 5th digit
abductor digit minimi: action abducts and flexes 5th digit
abductor digiti minimi: innervation lateral plantar nerve
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 4 digits
quadratus plantae: innervation lateral plantar nerve
lumbricals: origin tendons of flexor digitorum longus
lumbricals: insertion medial aspect of expansion over lateral 4 digits
lumbricals: action flex proximal phalanges and extend middle and distal phalanges of lateral 4 digits
lumbricals: innervation Medial one: medial plantar nerve. Lateral three: lateral plantar nerve
flexor hallucis brevis: origin plantar surfaces of cuboid and lateral cuneiform
flexor hallucis brevis: insertion both sides of base of proximal phalanx of 1st digit
flexor hallucis brevis: action flexes proximal phalanx of first digit
flexor hallucis brevis: innervation medial plantar nerve
adductor hallucis: origin Oblique head: bases of metatarsals 2-4. Transeverse head: plantar ligaments of metatarsophalangeal joints
adductor hallucis: insertion tendons of both heads attach to lateral side of base of proximal phalanx of great toe
adductor hallucis: action adducts great toe, assists in maintaining transverse arch of foot
adductor hallucis: innervation deep branch of lateral plantar nerve
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
flexor digiti minimi brevis: innervation superficial branch of lateral plantar nerve
plantar interossei (3): origin bases and medial sides of metatarsals 3-5
plantar interossei: insertion medial sides of bases of proximal phalanges of third to fifth digits
plantar interossei: action adduct digits (2-4) and flex metatarsophalangeal joints
plantar interossei: innervation lateral plantar nerve
dorsal interossei (4): origin adjacent sides of metatarsals 1-5
dorsal interossei: insertion First: medial side of proximal phalanx of 2nd digit. Second to Fourth: lateral sides of 2nd to 4th digits
dorsal interossei: action abduct digits (2-4) and flex metatarsophalangeal joints
dorsal interossei: innervation lateral plantar nerve
4 muscles of the foot innervated by the medial plantar nerve abductor hallucis, flexor digitorum brevis, medial lumbrical, flexor hallucis brevis
First layer of plantar muscles (3) abductor hallucis, flexor digitorum brevis, abductor digiti minimi
2nd layer of plantar muscles (3) quadratus plantae, tendons of flexor digitorum longus and flexor hallucis longus, lumbricals
3rd layer of plantar muscles (3) flexor hallucis brevis, adductor hallucis, flexor digiti minimi
4th layer of plantar muscles Interossei--4 dorsal and 3 plantar
muscles of the dorsum of the foot (2) extensor digitorum brevis, extensor hallucis brevis
Created by: JillLindelow
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