Muscles Of The Sole Of The Foot Flashcards
Insertion of the abductor hallucis
Medial side of base of proximal phalanx of 1st digit
Origin of the abductor hallucis
Medial tubercle of tuberosity of calcaneus
Flexor retinaculum
Plantar aponeurosis
Innervation of abductor hallucis
Medial plantar nerve (S2, S3)
Actions of the abductor hallucis
Abducts and flexes great toe
Origin of the flexor digitorum brevis
Medial tubercle of the tuberosity of calcaneus
Plantar aponeurosis
Intermuscular septa
Insertion of the flexor digitorum brevis
Both sides of middle phalanges of lateral 4 digits
Innervation of the flexor digitorum brevis
Medial plantar nerve (S2, S3)
Actions of the flexor digitorum brevis
Flexes lateral 4 digits
Origin of the abductor digiti minimi
Medial and lateral tubercles of tuberosity of calcaneus
Plantar aponeurosis
Intermuscular septa
Insertion of the abductor digiti minimi
Lateral side of base of proximal phalanx of 5th digit
Innervation of the abductor digiti minimi
Lateral plantar nerve (S2, S3)
Actions of the abductor digiti minimi
Abducts and flexes 5th digit
Origin of the quadratus plantae
Medial surface and lateral margin of plantar surface of calcaneus
Insertion of the quadratus plantae
Posterolateral margin of tendon of flexor digitorum longus
Innervation of quadratus plantae
Lateral plantar nerve (S2, S3)
Actions of the quadratus plantae
Assists flexor digitorum longus in flexing lateral 4 digits
Origin of the lumbricals
Tendons of flexor digitorum longus
Insertion of the lumbricals
Medial aspect of expansion over lateral four digits
Innervation of the lumbricals
Medial one: medial plantar nerve (S2, S3)
Lateral three: lateral plantar nerve (S2, S3)
Action of the lumbricals
Flex proximal phalanges
Extend middle and distal phalanges of lateral 4 digits
Origin of the flexor hallucis brevis
Plantar surfaces of cuboid and lateral cuneiform
Insertion of the 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 the flexor hallucis brevis
Flexes proximal phalanx of 1st digit
Origin of the adductor hallucis
Oblique head: bases of 2-4 metatarsals
Transverse head: plantar ligaments of 3rd-5th metatarsophalangeal joints
Insertion of the adductor hallucis
Tendons of both heads attach to lateral side of base of proximal phalanx of 1st digit
Innervation of the adductor hallucis
Deep branch of lateral plantar nerve (S2, S3)
Actions of the adductor hallucis
Adducts 1st digit
Assists in maintaining transverse arch of foot
Origin of the flexor digiti minimi brevis
Base of 5th metatarsal
Insertion of the flexor digiti minimi brevis
Base of proximal phalanx of 5th digit
Innervation of the flexor digiti minimi brevis
Superficial branch of the lateral plantar nerve (S2, S3)
Actions of the flexor digiti minimi brevis
Flexes proximal phalanx of 5th digit, thereby assisting with its flexion
Origin of the plantar interossei (3)
Bases and medial sides of metatarsals 3-5
Insertion of the plantar interossei (3)
Medial sides of bases of proximal phalanges of 3rd-5th digits
Innervation of the plantar interossei (3)
Lateral plantar nerve (S2, S3)
Actions of the plantar interossei (3)
Adduct digits (3-5) and flex metatarsophalangeal joints
Origin of the dorsal interossei (4)
Adjacent sides of metatarsals 1-5
Insertion of the dorsal interossei (4)
First: medial side of proximal phalanx of 2nd digit
Second-fourth: lateral sides of 2nd-4th digits
Innervation of the dorsal interossei (4)
Lateral plantar nerve (S2, S3)
Actions of the dorsal interossei (4)
Abducts digits (2-4) and flex metatarsophalangeal joints