ankle and foot muscles

Question 1

what are the 2 intrinsic foot muscles located on the dorsal / superior aspect of the foot

Answer 1

extensor digitorum brevis
extensor hallucis brevis

Question 2

extensor digitorum brevis O & I

Answer 2

dorsal surface of superior/lateral calcaneus

by tendons of extensor digitorum longus of digits 2-4

Question 3

extensor digitorum brevis actions and nerve

Answer 3

extend toes 2-4 MTP joints

DEEP PERONEAL

Question 4

extensor hallucis brevis O & I

Answer 4

distal part of superior and lateral surfaces of calcaneus

dorsal surface of base of proximal phalanx of big toe

Question 5

extensor hallucis brevis action and nerve

Answer 5

extends MTP joint of big toe

DEEP PERONEAL

Question 6

what are the 3 muscles in layer 1

Answer 6

1. Abductor hallucis
2. Abductor digiti minimi
3. Flexor digitorum brevis

Question 7

what are the 2 muscles in layer 2

Answer 7

1. Quadratus Plantae
2. Lumbricals

Question 8

what are the 3 muscles of layer 3

Answer 8

1. Flexor hallucis brevis
2. Flexor digiti minimi
3. Adductor hallucis

Question 9

what are the 2 muscles in LAYER 4

Answer 9

1. Plantar interossei
2. Dorsal interossei

Question 10

Abductor Hallucis O & I

Answer 10

medial process of calcaneal tuberosity

medial side of base of proximal phalanx of big toe

Question 11

Abductor Hallucis actions and nerves

Answer 11

abducts and flexes MTP joints of big toe

MEDIAL PLANTAR

Question 12

Abductor digiti minimi O & I

Answer 12

calcaneal tuberosity

base of proximal phalanx of 5th digit

Question 13

Abductor Digiti Minimi actions and nerve

Answer 13

abducts 5th digit

LATERAL PLANTAR

Question 14

Flexor digitorum brevis O & I

Answer 14

calcaneal tuberosity

middle phalanx of digits 2-5

Question 15

Flexor digitorum brevis actions and nerve

Answer 15

flex proximal IP joints

MEDIAL PLANTAR

Question 16

Quadratus Plantae O & I

Answer 16

medial head: medial surface of calcaneus
lateral head: lateral border of the plantar surface of calcaneus

lateral margin and dorsal plantar surface of tendon flexor digitorum longus

Question 17

Quadratus Plantae action and nerve

Answer 17

assist in flexing digits 2-5

LATERAL PLANTAR

Question 18

what actions do the lumbricals do

Answer 18

flex MTP joints and assist in extending the IP joints of 2-5 digits

Question 19

what are the 2 nerves of the lumbricals

Answer 19

1= medial plantar

2-4 = lateral plantar

Question 20

lumbricals Origins

Answer 20

1= medial side of 1st flexor digitorum longus tendon

2= adjacent sides of 1st & 2nd flexor digitorum longus tendon

3= adjacent sides of 2 & 3 flexor digitorum longus tendons

4 = adjacent sides of 3rd & 4th flexor digitorum longus tendons

Question 21

what is the insertion of the lumbricals

Answer 21

medial side of proximal phalanx & dorsal expansion of extensor digitorum longus tendon of 2-5 digits

Question 22

Flexor hallucis brevis O & I

Answer 22

medial part of plantar surface of cuboid bone, lateral cuneiform

medial & lateral sides of base of proximal phalanx of big toe

Question 23

flexor hallucis brevis action and nerve

Answer 23

flex MTP joint of big toe

MEDIAL PLANTAR

Question 24

Flexor digiti minimi O & I

Answer 24

base of 5th metatarsal

base of proximal phalanx of 5th digit

Question 25

flexor digiti minimi action and nerve

Answer 25

flex MTP of digit 5 LATERAL PLANTAR

Question 26

Adductor Hallucis O & I

Answer 26

oblique head: bases of metatarsal bones 2-4 transverse head: from plantar MTP ligaments of 3-5 digits lateral side of base of proximal phalanx of big toe

Question 27

Adductor hallucis action and nerve

Answer 27

adducts and assist in flexing MTP of big toe LATERAL PLANTAR

Question 28

Plantar interossei O & I

Answer 28

bases and medial sides of bodies of 3rd-5th metatarsal bones medial sides of bases of proximal phalanges of same digit

Question 29

Plantar interossei action and nerve

Answer 29

adducts digits 3,4,5 toward axial line through 2nd digit assist in flexion of MTP joints may assist in extension of IP joints 3,4,5 LATERAL PLANTAR

Question 30

Dorsal Interossei Origin

Answer 30

each by 2 heads from adjacent sides of metatarsal bones

Question 31

dorsal interossei insertions

Answer 31

side of proximal phalanx 1 = to the medial side of 2nd digit 2-4 = to the lateral sides of digits 2-4

Question 32

actions of dorsal interossei

Answer 32

abducts digits 2-4 from axial line through 2nd digit assist in flexion of MTP joints may assist in extension of IP joints of digits 2-4

Question 33

dorsal interossei nerve

Answer 33

LATERAL PLANTAR

Question 34

TOE MOVEMENTS: 1st toe flexion - what 2 muscles

Answer 34

flexor hallucis longus & brevis

Question 35

TOE MOVEMENTS: what 3 muscles do toe 2-5 flexion

Answer 35

flexor digitorum longus & brevis lumbricals

Question 36

TOE MOVEMENTS: what 2 muscles do 1st toe extension

Answer 36

extensor hallucis longus & brevis

Question 37

TOE MOVEMENTS: what 2 muscles do toe 2-5 extension

Answer 37

extensor digitorum longus & brevis

Question 38

what muscle does abduction

Answer 38

dorsal interossei

Question 39

what muscle does adduction

Answer 39

plantar interossei

Question 40

what muscles are part of the anterior crural mm group (4)

Answer 40

tibialis anterior extensor digitorum longus extensor hallucis longus fibularis tertius

Question 41

what muscles are part of the lateral crural mm group (2)

Answer 41

fibularis longus fibularis brevis

Question 42

what muscles are part of the superficial posterior compartment (3)

Answer 42

gastrocs soleus plantaris

Question 43

what muscles are in the deep posterior mm group (4)

Answer 43

popliteus tibialis posterior flexor digitorum longus flexor hallucis longus

Question 44

what muscles are innervated by the LATERAL plantar nerve (7)

Answer 44

abductor digiti minimi quadratus plantae lumbricals digits 2-4 flexor digiti minimi adductor hallucis plantar interossei dorsal interossei

Question 45

what muscles are innervated by the medial plantar nerve (4)

Answer 45

abductor hallucis flexor digitorum brevis lumbricals digit 1 flexor hallucis brevis

Question 46

what muscles of foot are innervated by the deep peroneal nerve

Answer 46

extensor digitorum brevis extensor hallucis brevis