Intrinsic Muscles of Foot

Question 1

Extensor Digitorum Brevis

Answer 1

Calcaneus to the dorsal aponeurosis and middle phalanges of digits 2 through 4

Extends digits

Question 2

Extensor Hallucis Brevis

Answer 2

Calcaneus to dorsal aponeurosis and proximal phalanx of hallux

Extends hallux

Question 3

Abductor Hallucis

Answer 3

Calcaneal tuberosity and plantar aponeurosis to proximal phalanx of hallux

Flexes hallux

Question 4

Flexor Hallucis Brevis

Answer 4

Medial and intermediate cuneiform and plantar calcaneocuboid ligament to proximal phalanx via medial and lateral sesamoid

Flexes hallux

Question 5

Adductor Hallucis

Answer 5

Metatarsals of digits 2-4, cuboid, lateral cuneiform (oblique head), metatarsophalangeal joints of digits 3-5 (transverse head) to the proximal phalanx of the hallux

Flexes and adducts hallux

Question 6

Abductor Digiti Minimi

Answer 6

Calcaneal tuberosity and plantar aponeurosis to proximal phalanx of the 5th digit and 5th metatarsal

Flexes and abducts 5th digit

Question 7

Flexor Digiti Minimi Brevis

Answer 7

Metatarsal of 5th digit and long plantar ligament to the proximal phalanx of 5th digit

Flexes 5th digit

Question 8

Opponens Digiti Minimi

Answer 8

Long plantar ligament and tendon sheath of peroneus longus to 5th metatarsal

Opposes 5th digit

Question 9

Flexor Digitorum Brevis

Answer 9

Calcaneal tuberosity and plantar aponeurosis to middle phalanges of digits 2-5

Flexes digits 2-5

Question 10

Quadratus Plantae

Answer 10

Calcaneal tuberosity to lateral border of flexor digitorum longus tendon

Augments tension of flexor digitorum longus

Question 11

First Through Fourth Lumbricals

Answer 11

Medial border of flexor digitorum longus to dorsal aponeurosis of digits 2-5

Flexes, extends, and adducts digits 2-4

Question 12

First Through Fourth Dorsal Interossei

Answer 12

By two heads from opposing sides of all metatarsals to the proximal phalange of those same digits

Flexes, extends, and adducts digits 2-4