foot muscles

Question 1

what muscles are on dorsal aspect and what are their innervation

Answer 1

-extensor hallucis brevis
-extensor digitorum brevis
deep fibular N

Question 2

what muscles are in plantar layer 1

Answer 2

-abductor hallucis
-abductor digiti minimi
-flexor digitorum brevis

Question 3

what muscles are in plantar layer 2

Answer 3

-quadratus plantae
-lumbricals (4)

Question 4

what muscles are in plantar layer 3

Answer 4

-adductor hallucis
-flexor hallucis brevis
-flexor digiti minimi brevis

Question 5

what muscles are in plantar layer 4

Answer 5

-plantar interossei
-dorsal interossei

Question 6

extensor hallucis brevis origin insertion

Answer 6

o - calcaneus
i - proximal phalanx of 1st toe

Question 7

extensor hallucis brevis action

Answer 7

extend 1st toe at MTP joint

Question 8

extensor digitorum brevis origin insertion

Answer 8

o - calcaneus
i - middle phalanx of toes 2-5

Question 9

extensor digitorum brevis action

Answer 9

extend toes 2-5 at MTP and PIP joints

Question 10

abductor hallucis origin insertion

Answer 10

o - calcaneus and plantar aponeurosis
i - medial proximal phalax of 1st toe

Question 11

abductor hallucis actions

Answer 11

abducts first toe at MTP joint

Question 12

abductor digiti minimi origin insertion

Answer 12

o - calcaneus and plantar aponeurosis
i - lateral proximal phalanx of 5th toe

Question 13

abductor digiti minimi actions

Answer 13

abducts 5th toe at MTP joint

Question 14

flexor digitorum brevis origin insertion

Answer 14

o - calcaneus and plantar aponeurosis
i - middle phalanx of toes 2-5

Question 15

flexor digitorum brevis action

Answer 15

flexes toes 2-5 at MTP and PIP joints

Question 16

quadratus plantae origin insertion

Answer 16

o - calcaneus
i - flexor digitorum longus tendon

Question 17

quadratus plantae actions

Answer 17

assists FDL straighten flexion of toes 2-5

Question 18

lumbricals origin insertion

Answer 18

o - flexor digitorum longus tenon
i - extensor digitorum tendons on proximal phalanges of toes 2-5

Question 19

lumbricals actions

Answer 19

flexes toes 2-5 at MTP joints
extends toes 2-5 at PIP and DIP joints

Question 20

adductor hallucis origin insertion

Answer 20

o - metatarsals 2-4 (transverse head) and flibularis longus tendon (oblique head)
i - lateral proximal phalanx of 1st toe

Question 21

adductor hallucis actions

Answer 21

adduct 1st toes at MTP joint

Question 22

flexor hallucis brevis origin insertion

Answer 22

o - cuboid and cuneiform 3
i - medial and lateral sides of proximal phalanx of 1st toe

Question 23

flexor hallucis brevis actions

Answer 23

flexes 1st toe at MTP joint

Question 24

flexor digiti minimi brevis origin insertion

Answer 24

o - base of 5th metatarsal
i - lateral proximal phalanx of 5th toe

Question 25

flexor digiti minimi brevis actions

Answer 25

flexes 5th toe ar MTP joint

Question 26

plantar interossei origin insertion

Answer 26

o - metatarsals 3-5
i - proximal phalanges 3-5

Question 27

plantar interossei actions

Answer 27

adduct toes 3-5 at MTP joints

Question 28

dorsal interossei origin insertion

Answer 28

o - adjacent sides of metatarsals
i - proximal phalanges toes 2-4

Question 29

dorsal intereossei actions

Answer 29

abducts toes 2-4 at MTP joints

Question 30

which muscles are innervated by the medial plantar N

Answer 30

-abductor hallucis
-flexor digitorum brevis
-lumbricals 1,2
-flexor hallucis brevis

Question 31

which muscles are innnervated by the lateral plantar N

Answer 31

-abductor digiti minimi
-quadratus plantae
-lumbricasl 3,4
-adductor hallucis
-flexor digiti minimi brevis
-plantar interossei
-dorsal interossei