Foot

Question 1

I of extensor digitorum brevis

Answer 1

lateral 3 tendons attach to tendons of Ext. Dig. Longus to digits 2-4

Question 2

Action of Extensor Digitorum longus

Answer 2

extend toes 2-4 at metatarsal phalangeal joint

assist ext. dig. longus

Question 3

Innervation of Extensor Digitorum brevis

Answer 3

Deep Fibular (L5-S1)

Question 4

Origin of Extensor Hallucis Brevis

Answer 4

Same as Extensor digitorum brevis
anterior part of the dorsal surface of calcaneus
anterior and medial to the lateral malleolus
inferior extensor retinaculum

Question 5

I of extensor hallucis brevis

Answer 5

medial tendon of 4 tendons to base of proximal phalanx of hallux

Question 6

Action of extensor hallucis brevis

Answer 6

extend hallux at MTP jt.

assist ext hallucis longus

Question 7

Innervation of extensor hallucis brevis

Answer 7

deep peroneal n L5-S1

Question 8

O of abductor hallucis

Answer 8

medial process of tuber calcaneus
flexor retinaculum
planter aponeurosis

Question 9

I of Abductor Hallucis

Answer 9

medial side of base of proximal phalanx of hallux

Question 10

Action of abductor hallucis

Answer 10

abducts and flexes hallux

Question 11

innervation of abductor hallucis

Answer 11

medial plantar n S1-S2

Question 12

flexor digitorum brevis

Answer 12

medial process of tuber calcaneus
plantar aponeurosis
intermuscular septum

Question 13

I of flexor digitorum brevis

Answer 13

both sides of middle phalanx of lateral four digits

Question 14

Action of flexor digitorum brevis

Answer 14

flexes lateral 4 digitsproximal interphalangeal joint

Question 15

innervation of flexor digitorum brevis

Answer 15

medial plantar n. (S1-S2)

Question 16

O of abductor digiti minimi

Answer 16

medial and lateral processes of tuber calcanei
intermuscular septum
plantar aponeurosis

Question 17

I of Abductor Digiti minimi

Answer 17

Lateral side of base of proximal phalance of 5th digit

Question 18

Action of abductor digiti minimi

Answer 18

abducts and flexes 5th digit

Question 19

Innervation of Abductor digiti minimi

Answer 19

lateral plantar n (S2-S3)

Question 20

Quatdratus plantae origin

Answer 20

medial surface and lateral margin of plantar surface of calcaneus

Question 21

I quadratus plantae

Answer 21

posterolateral margin of tendon of flex. dig. longus

Question 22

action of quadratus plantae

Answer 22

assists flex. dig. longus in flexing lateral 4 digits

Question 23

Innervation of Quadratus plantae

Answer 23

Lateral plantar n S2, S3

Question 24

O of lumbricals

Answer 24

tendons of flex dig longus

Question 25

I of lumbricals

Answer 25

medial sides of bases of proximal phalanges of lateral 4 digits extensor expansions of tendons of ext. dig. longus

Question 26

action of lumbricals

Answer 26

flex proximal phalanges | extend middle and distal phalanges of lateral 4 digits

Question 27

innervation of lumbricals

Answer 27

medial lumbrical - medial plantar n (S2-S3) | lateral 3 lumbricals - lateral plantar n (S2-S3)

Question 28

O of flexor hallucis brevis

Answer 28

plantar surfaces of cuboid and lateral cuneiform bones

Question 29

I of flexor hallucis brevis

Answer 29

both sides of base of proximal phalanx of hallux

Question 30

action of flexor hallucis brevis

Answer 30

flexes proximal phalanx of hallux

Question 31

Innervation of Flexor hallucis brevis

Answer 31

medial plantar n. S1-S2

Question 32

O of adductor hallucis

Answer 32

oblique head - bases of metatarsals 2-4 | transverse head - plantar ligaments of metatarsal phalangeal joints

Question 33

i of adductor hallucis

Answer 33

tendons of both heads attach to lateral side of base of proximal phalanx of hallux

Question 34

action of adductor hallucis

Answer 34

adducts hallux | assists in maintaining transverse arch

Question 35

innervation of adductor hallucis

Answer 35

lateral plantar n. S2-S3

Question 36

o of flexor digiti minimi brevis

Answer 36

base of 5th metatarsal bone

Question 37

i of flexor digiti minimi brevis

Answer 37

base of proximal phalanx of 5th digit

Question 38

action of flexor digiti minimi brevis

Answer 38

flexes proximal phalanx of 5th digit

Question 39

innervation of flexor digiti minimi brevis

Answer 39

lateral plantar n (S2-S3)

Question 40

origin of plantar interossei (3 muscles)

Answer 40

bases and medial sides of metatarsal bones 3-5

Question 41

i of plantar interossei (3 muscles)

Answer 41

medial side of bases of proximal phalnges of digits 3-5

Question 42

action of plantar interossei (3 mucsles)

Answer 42

adducts digits 3-5 | flexes MTP jts.

Question 43

innervation of plantar interossei

Answer 43

lateral plantar n S2-S3

Question 44

o of dorsal interossei (4 muscles)

Answer 44

adjacent sides of metatarsal bones 1-5

Question 45

i of dorsal interossei

Answer 45

1st - medial side of proximal phalanx of 2nd digit | 2-4 - lateral sides of digits 2-4

Question 46

action of dorsal interossei

Answer 46

abducts digits 2-4

Question 47

innervation of dorsal interossei

Answer 47

lateral plantar n S2-S3

Question 48

the deep fascia of the foot- continuos with deep fascia around _____ joint. on the ____ surface it is ___ and continuous with the ______

Answer 48

talocrural, dorsal, thin, inferior extensor retinaculum

Question 49

greatly thickened dense connective tissue that spans the entire plantar surface of the foot

Answer 49

plantar aponeurosis

Question 50

the plantar aponeurosis helps in supporting the _____ arches

Answer 50

longitudinal

Question 51

where does the plantar aponeurosis start

Answer 51

on the tuber calcaneus

Question 52

where does the plantar aponeurosis fan into

Answer 52

encases the flexor tendons of digits (fans out into 4 separate bands distally toward the toes)

Question 53

________ from the deep side of the plantar aponeurosis divide the plantar side of foot into medial, central, and lateral longitudinal compartments

Answer 53

vertical septa

Question 54

What joint comprises the ankle, and what type

Answer 54

talocrural - hinge type synovial

Question 55

what type of joint is the interosseus membrane

Answer 55

syndesmosis joint

Question 56

not only are the tibia and fibula held together by the interosseus membrane, but also

Answer 56

ant & post inferior tibiofibular ligaments

Question 57

When is the ankle limited in inversion/eversion and rotation

Answer 57

dorsiflexion (closed-pack position)

Question 58

what does the deltoid ligament do

Answer 58

4 parts connecting tibia to navicular, talus (2-ant., post.), and calcaneus

Question 59

what are the lateral ligaments of the ankle?

Answer 59

ant., post. talofibular and calcanofibular

Question 60

what might the strength of the ancle ligaments result in

Answer 60

avulsion fractures of the lateral or medial malleolus during force inversion or eversion

Question 61

joint between talus and calcaneus

Answer 61

subtalar

Question 62

primary location of inversion and eversion

Answer 62

subtalar

Question 63

what comprises the transverse tarsal joint

Answer 63

combination of talocacanonavicular jt and calcaneocubiod joint

Question 64

what does the transverse tarsal joint facilitate

Answer 64

inversion/eversion, pronation/supination

Question 65

the medial and lateral longitudinal arch are supported by what 4 things

Answer 65

``` plantar calcaneonavicular (spring) ligament plantar aponeurosis long plantar ligament short plantar ligament ```

Question 66

transverse arch is supported by

Answer 66

tendon of the peroneus longus muscle

Question 67

what is the anterior tibial a. named once it passes deep to the inferior extensor retinaculum

Answer 67

dorsalis pedis

Question 68

lack of or diminished dorsalis pedis pulse is an indicator of

Answer 68

vascular insufficiency, possibly from atherosclerotic changes

Question 69

dorsalis pedis divides distally near the MTP joint into the

Answer 69

deep plantar a. and arcuate a.

Question 70

The deep plantar a. joins the ___________ by diving between the proximal phalanx bones of the hallux and second toe

Answer 70

deep plantar arterial arch

Question 71

What branches off the arcuate artery?

Answer 71

dorsal digital branches and perforating branches that reach the plantar surface of the foot

Question 72

extensions of the posterior tibial artery

Answer 72

medial and lateral plantar artery

Question 73

which artery has a less consistent superficial plantar arch? medial or lateral plantar

Answer 73

medial plantar a.

Question 74

tibial nerve divides posterior to _____ into medial and lateral plantar n.

Answer 74

medial malleolus

Question 75

which plantar n is larger?

Answer 75

medial

Question 76

medial plantar n is deep to

Answer 76

abductor hallucis

Question 77

What does the superficial branch of the lateral plantar n. innervate.

Answer 77

lateral muscles of foot and cutaneous branches to lateral two digits

Question 78

where does the sural n arise from?

Answer 78

branches of the tibial n and common fibular n at the level of the popliteal fossa

Question 79

what supplies the cutaneous innervation to posterior and lateral distal third of the leg, then the skin over the lateral margin of foot and 5th digit

Answer 79

sural n

Question 80

where does the saphenous n come from?

Answer 80

divided off the femoral n. in the femoral triangle and descended along with femoral .a. and v. through the adductor canal and popliteal fossa

Question 81

what supplies the cutaneous innervation over the anterior and medial parts of the leg and along the medial side of the foot

Answer 81

saphenous n.

Question 82

O of Extensor Digitorum Brevis

Answer 82

Anterior part of dorsal surface of calcaneus anterior and medial to lateral malleolus inferior extensor retinaculum