Foot Muscles

Question 1

Abductor Hallucis origin and insertion

Answer 1

Origin- Medial process of calcaneus and plantar aponeurosis

Insertion- Proximal phalanx of 1st toe and medial sesamoid bone

Question 2

Abductor Hallucis Action

Answer 2

Abduct the 1st toe; Assist to flex the 1st toe

Question 3

Flexor Digitorum Brevis origin and insertion

Answer 3

Origin- Medial process of calcaneus and plantar aponeurosis

Insertion- Middle phalanges of 2nd-5th toes

Question 4

Flexor Digitorum Brevis Action

Answer 4

Flex middle phalanges of second through 5th toe

Question 5

Abductor Digiti Minimi origin and insertion

Answer 5

Origin- Lateral process of calcaneus and plantar aponeurosis

Insertion- Proximal phalanx of 5th toe

Question 6

Abductor Digiti Minimi Action

Answer 6

Flex the fifth toe; Assist to abduct the fifth toe

Question 7

Quadratus Plantae origin and insertion

Answer 7

Origin- Medial and lateral sides of plantar surface of calcaneus

Insertion- Posterior, lateral aspect of flexor digitorum Longus tendon

Question 8

Quadratus Plantae Action

Answer 8

Assist flexor Digitorum Longus to flex the second through fifth toes

Question 9

Lumbricals origin and insertion

Answer 9

Origin- Tendons of flexor Digitorum Longus

Insertion- Bases of proximal phalanges of 2nd-5th toes and extensor Digitorum Longus tendons

Question 10

Lumbricals Action

Answer 10

Flex the proximal phalanges of the 2nd-5th toes at MTP joints; extend the middle and distal phalanges of 2nd-5th toes at IP joints

Question 11

Flexor Hallucis Brevis origin and insertion

Answer 11

Origin- Plantar surfaces of cuboid and lateral cuneiform

Insertion- Medial and lateral surfaces of base of proximal phalanx of 1st toe

Question 12

Flexor Hallucis Brevis action

Answer 12

Flex the first toe

Question 13

Adductor Hallucis origin and insertion

Answer 13

Origin- OBLIQUE head: Bases of 2nd-4th metatarsals
TRANSVERSE head: Plantar ligament of 3rd-5th MTP joints

Insertion- Lateral surface of base of proximal phalanx of 1st toe

Question 14

Adductor Hallucis Action

Answer 14

Adduct the first toe; Assist to maintain transverse arch of foot; Assist to flex the first toe

Question 15

Flexor Digiti Minimi Brevis origin and insertion

Answer 15

Origin- Base of 5th metatarsal

Insertion- Base of proximal phalanx of 5th toe

Question 16

Flexor Digiti Minimi Action

Answer 16

Flex the 5th toe

Question 17

Plantar Interossei origin and insertion

Answer 17

Origin- Medial surfaces of 3rd-5th metatarsals

Insertion- Medial surfaces of proximal phalanges of 3rd-5th toes

Question 18

Plantar Interossei Action

Answer 18

Abduct and flex 3rd-5th toes

Question 19

Dorsal Interossei origin and insertion

Answer 19

Origin- Adjacent surfaces of all metatarsals

Insertion- FIRST: Medial surface of proximal phalanx of 2nd toe

SECOND-FOURTH: Lateral surfaces of proximal phalanges of 2nd-4th toes

Question 20

Dorsal Interossei Action

Answer 20

Abduct and flex the 2nd-4th toes

Question 21

Extensor Hallucis Brevis origin and insertion

Answer 21

Origin- Dorsal surface of calcaneus

Insertion- Proximal phalanx of 1st toe

Question 22

Extensor Hallucis Brevis Action

Answer 22

Extend the first toe

Question 23

Extensor Digitorum Brevis origin and insertion

Answer 23

Origin- Dorsal surface of calcaneus

Insertion- 2nd-4th toes via extensor Digitorum Longus tendons

Question 24

Extensor Digitorum Brevis Action

Answer 24

Extend the 2nd-4th toes