Muscles Of Sole Of Foot Flashcards
Insertion abductor hallucis
Medial side of base of proximal phalanx of 1st digit
Origin of abductor hallucis
Medial tubercle of tuberosity of calcaneus, flexor retinaculum and plantar aponeurosis
Innervation of abductor hallucis
Medial plantar nerve S2,S3
Action abductor hallucis
Abducts and flexes 1st digit
Origin flexor digitorum brevis
Medial tubercle of tuberosity of calcaneus, inter muscular septum and plantar aponeurosis
Insertion of flexor dig brevis
Both sides of middle phalanges of lateral four digits
Innervation of flexor dig brevis
Medial plantar nerve S2,S3
Action of flexor dig brevis
Flexes lateral four digits
Origin of abductor digiti minimi
Medial and lateral tubercle of tuberosity of calcaneus, inter muscular septum and plantar aponeurosis
Insertion of abductor digiti minimi
Lateral side of base of proximal phalanx of 5th digit
Innervation of abductor digiti minimi
Lateral plantar nerve S2,S3
Action of abductor digiti minimi
Abducts and flexes 5th digit
Origin of quadratus plantar
Medial surfaces and lateral margin of plantar surface of calcaneus
Insertion of quadratus plantae
Posterolateral margin of tendon of flexor dig longus
Innervation of quadratus plantae
Lateral plantar nerve S2,S3
Action of quadratus plantae
Assists flexor dig longus in flexing lateral four digits
Origin of lumbricals
Tendons of flexor dig longus
Insertion of lumbricals
Medial aspect of expansion over lateral four digits
Innervation of lumbricals
Medial one: medial plantar nerve S2,S3
Lateral three: lateral plantar nerve S2,S3
Action of lumbricals
Flex proximal phalanges extend middle and distal phalanges of lateral four digits
Origin of flexor hallucis brevis
Plantar surfaces of lateral cuneiform and cuboid
Insertion of flexor hallucis brevis
Both sides of base of proximal phalanx of 1st digit
Innervation of flexor hallucis brevis
Medial plantar nerve S2,S3
Action of flexor hallucis brevis
Flexes proximal phalanx of 1st digit
Origin of adductor hallucis
Oblique head:bases of metatarsals 2-4
Transverse head:plantar ligaments of 3rd-5th metatarsophalngeal joints
Insertion of adductor hallucis
Lateral side of base of proximal phalanx of 1st digit
Innervation of adductor hallucis
Deep branch of lateral plantar nerve S2,S3
Action of adductor hallucis
Adducts 1st digit maintains transverse arch of foot
Origin of flexor digiti minimi brevis
Base of 5th metatarsal
Insertion of flexor digiti minimi brevis
Base of proximal phalanx of 5th digit
Innervation of flexor digiti minimi
Superficial branch of lateral plantar nerve S2,S3
Action of flexor digiti minimi brevis
Flexes proximal phalanx of 5th digit
Origin of plantar interossei
Bases and medial sides of 3-5 metatarsals
Insertion of plantar interossei
Bases and medial sides of proximal phalanges of 3-5th digits
Innervation of plantar interossei
Lateral plantar nerves S2,S3
Action of plantar interossei
Adducts 3-5th digits and flexes metatarsophalangeal joints
Origin of dorsal interossei
Adjacent sides of metatarsals 1-5
Insertion of dorsal interossei
First: medial side of proximal phalanx of 2nd digit
Second to fourth: lateral sides of 2-4th digits
Innervation of dorsal interossei
Lateral plantar nerve S2,S3
Action of dorsal interossei
Abducts 2-4th digits and flexes metatarsophangeal joints