Dorsum and Plantar Foot

Question 1

extensor digitorum brevis O

Answer 1

1. calcaneus
2. talocalcaneal ligament
3. inferior extensor retinaculum

Question 2

extensor digitorum brevis I

Answer 2

long extensor tendons (digits 2-4)

Question 3

extensor digitorum brevis action

Answer 3

1. extend toes 2-4 at the MTP and IP joints

Question 4

extensor digitorum brevis innervation

Answer 4

1. deep fibular (peroneal) nerve L5, S1 (one or both)

Question 5

extensor digitorum brevis artery

Answer 5

1. dorsalis pedis a.
2. arcuate a.
3. lateral tarsal a.

Question 6

extensor hallus brevis O

Answer 6

1. calcaneus
2. talocalcaneal ligament
3. inferior extensor retinaculum

Question 7

extensor hallus brevis I

Answer 7

base of proximal phalanx of the great toe (first digit)

Question 8

extensor hallus brevis Action

Answer 8

extend the great toe at the MTP joint

Question 9

extensor hallus brevis N

Answer 9

deep fibular (peroneal) nerve L5,S1 (one or both)

Question 10

extensor hallus brevis artery

Answer 10

1. dorsalis pedis artery
2. arcuate artery
3. lateral tarsal artery

Question 11

abductor digiti minimi o

Answer 11

medial and lateral sides of the tuberosity of the calcaneus, plantar aponeurosis

Question 12

abductor digiti minimi I

Answer 12

lateral side of the base of the proximal phalanx of the 5th digit

Question 13

abductor digiti minimi action

Answer 13

abducts and flexes the fifth toe

Question 14

abductor digiti minimi N

Answer 14

lateral plantar nerve (S1-S3)

Question 15

abductor digiti minimi artery

Answer 15

lateral plantar a.

Question 16

abductor hallucis O

Answer 16

medial side of the tuberosity of calcaneus
plantar aponeurosis

Question 17

abductor hallucis I

Answer 17

the base of the proximal phalanx of the great toe (hallux)

Question 18

abductor hallucis action

Answer 18

abducts and flexes 1st digit

Question 19

abductor hallucis N

Answer 19

medial plantar nerve (L5, S1)

Question 20

abductor hallucis artery

Answer 20

medial plantar artery

Question 21

dorsal interosseous O

Answer 21

shafts of the adjacent metatarsal bones

Question 22

dorsal interosseous I

Answer 22

bases of the proximal phalanges for digit 2 (both sides) and digits 3,4 (lateral side)

Question 23

dorsal interosseous action

Answer 23

abduct digits 2-4 (move these digits away from midline as defined by a plane passing through the 2nd digit); flex the MTP and extend the ITP joints of those digits

Question 24

dorsal interosseous N

Answer 24

deep branch of the lateral plantar nerve (S1-S3)

Question 25

dorsal interosseous artery

Answer 25

dorsal metatarsal artery

Question 26

plantar interosseous O

Answer 26

base and medial side of metatarsals 3-5

Question 27

plantar interosseous I

Answer 27

bases of proximal phalanges and extensor expansions of digits 3-5

Question 28

plantar interosseous action

Answer 28

1. adduct digits 3-5 (move these digits toward the midline of the foot as defined by a plane through the second digit); 2. flex the MTP and extend ITP joints of digits 3-5

Question 29

plantar interosseous nerve

Answer 29

deep branch of the lateral plantar nerve (S1-S3)

Question 30

plantar interosseous artery

Answer 30

plantar metatarsal artery

Question 31

lumbricals O

Answer 31

tendons of the flexor digitorum longus

Question 32

lumbricals I

Answer 32

medial side of the extensor expansion of digits 2-5

Question 33

lumbricals actions

Answer 33

1. Flex proximal IP joint 2. extend middle and distal IP joints of lateral four digits

Question 34

lumbricals N

Answer 34

1. medial (1st) lumbrical: Medial plantar nerve (L5-S1) 2. lateral three lumbricals: lateral plantar nerve (S1-S3)

Question 35

lumbricals artery

Answer 35

medial and lateral plantar artery

Question 36

quadratus plantae O

Answer 36

medial and lateral sides of plantar surface of calcaneus

Question 37

quadratus plantae I

Answer 37

tendons of the flexor digitorum longus muscle

Question 38

quadratus plantae action

Answer 38

asists the flexor digitorum longus in flexxing lateral four toes

Question 39

quadratus plantae nerve

Answer 39

lateral plantar nerve (S1-S3)

Question 40

quadratus plantae artery

Answer 40

medial and lateral plantar artery deep plantar arch

Question 41

flexor hallucis brevis O

Answer 41

cuboid lateral cuneiform medial side of the first metatarsal

Question 42

flexor hallucis brevis I

Answer 42

medial belly: medial side of proximal phalanx of the great toe lateral belly: lateral side of the proximal phalanx of the great toe

Question 43

flexor hallucis brevis action

Answer 43

flexes the MTP joint of the great toe

Question 44

flexor hallucis brevis N

Answer 44

medial plantar nerve (L5, S1)

Question 45

flexor hallucis brevis artery

Answer 45

medial plantar artery

Question 46

flexor digiti minimi brevis O

Answer 46

base of the 5th metatarsal bone

Question 47

flexor digitorum brevis O

Answer 47

1. tuberosity of the calcaneus 2. plantar aponeurosis 3. intermuscular septae

Question 48

flexor digitorum brevis I

Answer 48

both sides of middle phalanges digits 2-5

Question 48

flexor digitorum brevis action

Answer 48

flexes 2-5 digits

Question 48

adductor hallucis O

Answer 48

oblique head: bases of metatarsals 2-4 transverse head: heads of metatarsals 3-5

Question 49

flexor digitorum brevis N

Answer 49

medial plantar nerve (L5, S1)

Question 49

flexor digitorum brevis artery

Answer 49

medial and lateral plantar artery

Question 50

adductor hallucis I

Answer 50

lateral side of base of the proximal phalanx of the great toe

Question 51

adductor hallucis action

Answer 51

adducts the great toe (moves it towards midline of the foot; i.e. toward the second digit)

Question 52

adductor hallucis nerve

Answer 52

deep branch of the lateral plantar nerve (S1-S3)

Question 53

adductor hallucis artery

Answer 53

medial and lateral plantar artery plantar arterial arch

Question 54

flexor digiti minimi brevis I

Answer 54

lateral side of base of proximal phalanx of fifth digit

Question 55

flexor digiti minimi brevis action

Answer 55

flexes the metatarsophalangeal joint of the fifth digit

Question 56

flexor digiti minimi brevis nerve

Answer 56

superficial branch of the lateral plantar nerve (S1-S3)

Question 57

flexor digiti minimi brevis artery

Answer 57

lateral plantar artery