Muscles Of The Sole Of The Foot

Question 0

Insertion of the abductor hallucis

Answer 0

Medial side of base of proximal phalanx of 1st digit

Question 1

Origin of the abductor hallucis

Answer 1

Medial tubercle of tuberosity of calcaneus
Flexor retinaculum
Plantar aponeurosis

Question 2

Innervation of abductor hallucis

Answer 2

Medial plantar nerve (S2, S3)

Question 3

Actions of the abductor hallucis

Answer 3

Abducts and flexes great toe

Question 4

Origin of the flexor digitorum brevis

Answer 4

Medial tubercle of the tuberosity of calcaneus
Plantar aponeurosis
Intermuscular septa

Question 5

Insertion of the flexor digitorum brevis

Answer 5

Both sides of middle phalanges of lateral 4 digits

Question 6

Innervation of the flexor digitorum brevis

Answer 6

Medial plantar nerve (S2, S3)

Question 7

Actions of the flexor digitorum brevis

Answer 7

Flexes lateral 4 digits

Question 8

Origin of the abductor digiti minimi

Answer 8

Medial and lateral tubercles of tuberosity of calcaneus
Plantar aponeurosis
Intermuscular septa

Question 9

Insertion of the abductor digiti minimi

Answer 9

Lateral side of base of proximal phalanx of 5th digit

Question 10

Innervation of the abductor digiti minimi

Answer 10

Lateral plantar nerve (S2, S3)

Question 11

Actions of the abductor digiti minimi

Answer 11

Abducts and flexes 5th digit

Question 12

Origin of the quadratus plantae

Answer 12

Medial surface and lateral margin of plantar surface of calcaneus

Question 13

Insertion of the quadratus plantae

Answer 13

Posterolateral margin of tendon of flexor digitorum longus

Question 14

Innervation of quadratus plantae

Answer 14

Lateral plantar nerve (S2, S3)

Question 15

Actions of the quadratus plantae

Answer 15

Assists flexor digitorum longus in flexing lateral 4 digits

Question 16

Origin of the lumbricals

Answer 16

Tendons of flexor digitorum longus

Question 17

Insertion of the lumbricals

Answer 17

Medial aspect of expansion over lateral four digits

Question 18

Innervation of the lumbricals

Answer 18

Medial one: medial plantar nerve (S2, S3)

Lateral three: lateral plantar nerve (S2, S3)

Question 19

Action of the lumbricals

Answer 19

Flex proximal phalanges

Extend middle and distal phalanges of lateral 4 digits

Question 20

Origin of the flexor hallucis brevis

Answer 20

Plantar surfaces of cuboid and lateral cuneiform

Question 21

Insertion of the flexor hallucis brevis

Answer 21

Both sides of base of proximal phalanx of 1st digit

Question 22

Innervation of flexor hallucis brevis

Answer 22

Medial plantar nerve (S2, S3)

Question 23

Action of the flexor hallucis brevis

Answer 23

Flexes proximal phalanx of 1st digit

Question 24

Origin of the adductor hallucis

Answer 24

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

Question 25

Insertion of the adductor hallucis

Answer 25

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

Question 26

Innervation of the adductor hallucis

Answer 26

Deep branch of lateral plantar nerve (S2, S3)

Question 27

Actions of the adductor hallucis

Answer 27

Adducts 1st digit | Assists in maintaining transverse arch of foot

Question 28

Origin of the flexor digiti minimi brevis

Answer 28

Base of 5th metatarsal

Question 29

Insertion of the flexor digiti minimi brevis

Answer 29

Base of proximal phalanx of 5th digit

Question 30

Innervation of the flexor digiti minimi brevis

Answer 30

Superficial branch of the lateral plantar nerve (S2, S3)

Question 31

Actions of the flexor digiti minimi brevis

Answer 31

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

Question 32

Origin of the plantar interossei (3)

Answer 32

Bases and medial sides of metatarsals 3-5

Question 33

Insertion of the plantar interossei (3)

Answer 33

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

Question 34

Innervation of the plantar interossei (3)

Answer 34

Lateral plantar nerve (S2, S3)

Question 35

Actions of the plantar interossei (3)

Answer 35

Adduct digits (3-5) and flex metatarsophalangeal joints

Question 36

Origin of the dorsal interossei (4)

Answer 36

Adjacent sides of metatarsals 1-5

Question 37

Insertion of the dorsal interossei (4)

Answer 37

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

Question 38

Innervation of the dorsal interossei (4)

Answer 38

Lateral plantar nerve (S2, S3)

Question 39

Actions of the dorsal interossei (4)

Answer 39

Abducts digits (2-4) and flex metatarsophalangeal joints