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Lower Extremity Anatomy > Dorsum of the Foot and Neurovasculature of Anterior and Lateral Leg > Flashcards

Dorsum of the Foot and Neurovasculature of Anterior and Lateral Leg Flashcards

1
Q

Extensor Digitorum Brevis origin

A

sinus tarsi, superolateral calcaneus, interosseous talocalcaneal ligament, cruciate crural ligament

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2
Q

Extensor Digitorum Brevis insertion

A

lateral aspect of EDL tendons 2-4

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3
Q

innervation of the extensor digitorum brevis

A

lateral terminal branch of deep fibular

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4
Q

blood supply to extensor digitorum brevis

A

lateral tarsal artery

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5
Q

function of extensor digitorum brevis

A

dosiflex toes 2-4

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6
Q

extensor hallucis brevis tendon crosses dorsal to

A

dorsalis pedis artery

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7
Q

origin of the extensor hallucis brevis

A

sinus tarsi, superolateral calcaneus, interosseous talocalcaneal ligament, cruciate crural ligament

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8
Q

insertion of extensor hallucis brevis

A

dorsal aspect of proximal phalanx of hallux

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9
Q

blood supply of extensor hallucis brevis

A

lateral tarsal artery

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10
Q

innervation of extensor hallucis brevis

A

lateral terminal branch of deep fibular

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11
Q

function of extensor hallucis brevis

A

dorsiflex hallux

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12
Q

dorsalis pedis artery is a continuation of

A

anterior tibial artery

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13
Q

dorsalis pedis artery can arise from __(variation)

A

perforating fibular artery

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14
Q

dorsalis pedis artery is located between

A

the tendons of EHL and EDL (lateral to EHL)

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15
Q

dorsalis pedis artery is deep to

A

muscles/tendons, cruciate crural ligament (inferior ext. retinaculum)

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16
Q

branches of dorsalis pedis artery

A
  1. lateral tarsal
  2. medial tarsal artery
  3. arcuate artery (variation)
  4. 1st dorsal metatarsal
  5. deep plantar artery
  6. artery of the sinus tarsi
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17
Q

Artery to sinus tarsi arises from the anastomotic connection with __ and __

A

lateral tarsal; perforating fibular arteries

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18
Q

terminal branches of dorsals pedis artery

A

1st dorsal metatarsal and deep plantar artery

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19
Q

lateral tatsal artery anastomoses with

A

the lateral malleolar plexus, perforating fibular, arcuate, lateral plantar

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20
Q

lateral tarsal artery is deep to

21
Q

lateral tarsal artery supplies

A

bones, joints, ligaments that is passes

22
Q

medial tarsal artery supplies

A

bones, joints, ligaments that it passes

23
Q

medial tarsal artery anastomoses with

A

medial malleolar network, medial plantar artery

24
Q

can be more than 1

A

lateral tarsal artery

25
Q

a bunch of small branches

A

medial tarsal artery

26
Q

if absent, the lateral tarsal artery can take over the area of this artery

A

arcuate artery

27
Q

arcuate artery passas __ across met base

28
Q

arcuate artery gives off

A

2-4 metatarsal arteries

29
Q

deep plantar artery passes

A

through proximal end of inter metatarsal space

30
Q

deep plantar artery anastomoses with

A

lateral plantar artery on plantât side of foot

31
Q

Dorsal metatarsal arteries are found in the

A

intermetatarsal space on top of the dorsal interossei

32
Q

1st Dorsal metatarsal (terminal branch of dorsalis pedis)

A

-1st dorsal digital artery -2nd dorsal digital artery -3rd dorsal digital artery -Distal perforator -Nutrient artery to 1st metatarsal

33
Q

1st dorsal digital artery

A

medial 1st toe

34
Q

2nd dorsal digital artery

A

lateral 1st toe

35
Q

3rd dorsal digital artery

A

medial 2nd toe

36
Q

Distal perforator anastomosis with

A

1st plantar metatarsal

37
Q

The perforating arteries communicate with the

A

plantar metatarsal arteries.

38
Q

Plantar arteries can be a major source of the

A

dorsal metatarsal arteries

39
Q

Proximal located around __, distal around __

A

met base; MPJ

40
Q

branches from arcuate artery

A
  • 2nd dorsal metatarsal -3rd dorsal metatarsal -4th dorsal metatarsal artery -proper dorsal digital artery of 5th digit
41
Q

2nd dorsal metatarsal

A

-4th dorsal digital artery (lateral 2nd toe)-5th dorsal digital artery (medial 3rd toe)-Proximal and distal perforators

42
Q

3rd dorsal metatarsal artery (from arcuate artery)

A

-6th dorsal digital artery (lateral 3rd toe)-7th dorsal digital artery (medial 4th toe)-Proximal and distal perforators

43
Q

4th dorsal metatarsal artery (from arcuate artery)

A

-8th dorsal digital artery (lateral 4th toe)-9th dorsal digital artery (medial 5th toe)-Proximal and distal perforators

44
Q

Proper dorsal digital artery of 5th digit

A

-10th dorsal digital arteryThe -Lateral side of 5th toe-Can branch off 4th metatarsal artery or arcuate artery

45
Q

superior leg; Anterior tibial artery and deep fibular nerve are between

A

TA and EDL

46
Q

inferior leg; Anterior tibial artery and deep fibular nerve are between

A

TA and EHL

47
Q

distal to ankle joint;Dorsalis pedis and deep fibular nerve are between

A

EHL and EDL

48
Q

Injury (chronic inversion ankle sprains) damages

A

superficial fibular nerve (L4-S1)

49
Q

chronic inversion ankle sprain may cause

A

loss of eversion and altered sensation to dorsum of the foot

Lower Extremity Anatomy (16 decks)

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