Muscles of the Foot

Question 0

Abductor Hallucis Proximal

Answer 0

Medial tubercle oftuberosity of calcaneus, flexor retinaculum, and plantar aponeurosis

Question 1

Name the muscles in the first layer

Answer 1

Abductor Hallucis, Flexor digitorum, Abductor digiti minimi

Question 2

Abductor Hallucis Distal

Answer 2

Medial side of base of proximal phalanx of 1st digit

Question 3

Abductor Hallucis innervation

Answer 3

Medial plantar nerve S2, S3

Question 4

Abductor Hallucis action

Answer 4

Abducts and flexes 1st digit (great toe, hallux)

Question 5

Flexor digitorum brevis Proximal

Answer 5

Medial tubercle of tuberosity of calcaneus, plantar aponeurosis, and intermuscular septa

Question 6

Flexor digitorum brevis Distal

Answer 6

Both sides of middle phalanges of lateral four digits

Question 7

Flexor digitorum brevis innervation

Answer 7

Medial plantar nerve S2, S3

Question 8

Flexor digitorum brevis action

Answer 8

Flexes lateral four digits

Question 9

Abductor Digiti minimi Proximal

Answer 9

Medial and lateral tubercles of tuberosity of calcaneus, Plantar aponeurosis, and intermuscular septa

Question 10

Abductor Digiti minimi Distal

Answer 10

Lateral side of base of proximal phalanx of 5th digit

Question 11

Abductor Digiti minimi Innervation

Answer 11

Lateral Plantaer nerve S2, S3

Question 12

Abductor Digiti minimi Action

Answer 12

Abducts and flexes 5th digit

Question 13

Muscles of the second layer

Answer 13

Quadratus Plantae and Lumbricals

Question 14

Quadratus Plantae Proximal

Answer 14

Medial surface and lateral margin of plantar surface of calcaneus

Question 15

Quadratus Plantae Distal

Answer 15

Posterolateral margin of tendon of flexor digitorum longus

Question 16

Quadratus Plantae Innervation

Answer 16

Lateral plantar nerve S2, S3

Question 17

Quadratus Plantae action

Answer 17

Assists flexor digitorum longus in flexing lateral four digits

Question 18

Lumbricals Proximal

Answer 18

Tendons of flexor digitorum longus

Question 19

Lumbricals Distal

Answer 19

Medial aspect of expansion over lateral four digits

Question 20

Lumbricals Innervation

Answer 20

Medial one: medial plantar nerve S2, S3

Lateral three: Lateral plantar nerve S2, S3

Question 21

Lumbricals action

Answer 21

Flex proximal phalanges; extend middle and distal phalanges of lateral 4 digits

Question 22

Muscles of the 3rd layer

Answer 22

Flexor Hallucis brevis, Adductor hallucis, Flexor digiti minimi brevis

Question 23

Flexor Hallucis brevis Proximal

Answer 23

Plantar surface of cuboid and lateral cuneiform

Question 24

Flexor Hallucis brevis distal

Answer 24

Both sides of base of proximal phalanx of 1st digit

Question 25

Flexor Hallucis brevis innervation

Answer 25

Medial plantar nerve S2, S3

Question 26

Flexor Hallucis brevis action

Answer 26

Flexes proximal ohalanx of 1st digit

Question 27

Adductor Hallucis Proximal

Answer 27

Oblique head: Bases of metatarsals 2-4 | Transverse head: Plantar ligaments of 3rd-5th metatarsophalangeal joints

Question 28

Adductor Hallucis distal

Answer 28

Tendons of both heads attach to lateral side of base of proximal phalanx of 1st digit

Question 29

Adductor Hallucis Innervation

Answer 29

Deep branch of lateral plantar nerve S2, S3

Question 30

Adductor Hallucis action

Answer 30

Adducts 1st digit, assists in maintaining transverse arch of foot

Question 31

Flexor digiti minimi brevis proximal

Answer 31

Base of 5th metatarsal

Question 32

Flexor digiti minimi brevis distal

Answer 32

Base of proximal phalanx of 5th digit

Question 33

Flexor digiti minimi brevis Innervation

Answer 33

Superficial branch of lateral plantar nerve S2, S3

Question 34

Flexor digiti minimi brevis action

Answer 34

Flexes proximal phalanx of 5th digit, thereby assisting with its flexion

Question 35

Muscles of the 4th layer

Answer 35

Plantar interossei (3 muscles) and Dorsal interossei (4 muscles)

Question 36

Plantar interossei Proximal

Answer 36

Bases of medial sides of metatarsals 3-5

Question 37

Plantar interossei distal

Answer 37

medial sides of bases of proximal phalanges of 3rd-5th digits

Question 38

Plantar interossei innervation

Answer 38

Lateral plantar nerve S2, S3

Question 39

Plantar interossei action

Answer 39

Adduct digits 3-5 and flex metatarsophalangeal joints

Question 40

Dorsal interossei Proximal

Answer 40

Adjacent sides of metatarsals 1-5

Question 41

Dorsal interossei distal

Answer 41

First: medial side of proximal phalanx of 2nd digit | Second to fourth: Lateral sides of 2nd-4th digits

Question 42

Dorsal interossei innervations

Answer 42

Lateral plantar nerve S2, S3

Question 43

Dorsal interossei actions

Answer 43

Abduct digits 2-4 and flex metatarsophalangeal joints