The Foot - Dorsal Flashcards

1
Q

How many tarsals

A

7

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2
Q

how many metatarsals

A

5

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3
Q

How many phalanges

A

14 (1st toe only has 2)

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4
Q

Sesamoid bones

A

Medial and lateral in tendons of flexor hallucis and brevis muscle

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5
Q

Hind foot

A

Calcaneus and talus

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6
Q

Mid foot

A

cuboid, navicular, cuneiforms

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7
Q

Fore foot

A

Phalanges and metatarsals

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8
Q

Ball of foot

A

Sesamoid of 1st met and head of 2nd

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9
Q

Dorsal surface of foot - skin us usually

A

thin and loose

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10
Q

Deep fascia on dorsal surface of foot

A

Continues with crural fascia and fascia of plantar surface of foot

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11
Q

Dorsal surface - Thickening of deep fascia forms

A

Inferior extensor retinaculum

  • stem
  • superomedial limb
  • inferomedial limb
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12
Q

Dorsal surface Cutaneous nerves

A
  1. Saphenous Nerve
  2. Lateral dorsal cutaneous nerve
  3. Superficial peroneal nerve
  4. Deep peroneal nerve
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13
Q

Saphenous nerve

A

medial side of foot as far as the 1st metatarsal

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14
Q

Lateral dorsal cutaneous nerve

A

continuation of sural nerve into the foot

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15
Q

Superficial peroneal nerve

A

medial and ntermediate dorsal cutaneous nerves

supply middle part of dorsum of the foot

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16
Q

Deep peroneal nerve

A

supplies the skin btw 1st and 2nd toes

17
Q

Tendons and muscles in dorsal foot

A
  1. Extensor digitorum longus
  2. Extensor hallucis longus
  3. Extensor digitorum brevis
  4. Extensor hallucis brevis
18
Q

Extensor digitorum longus

A

One tendon for each of lateral four toes

Dorsal expansions over the toes

19
Q

Extensor hallicus longus

A

to the 1st toe

20
Q

Extensor digitorum brevis

A

Only intrinsic muscle of dorsum of foot

Extends toes 2 -4

21
Q

Extensor hallucis brevis

A

Goes to 1st toe

Part of extensor digitorum brevis

22
Q

Arteries dorsum of foot

A

Dorsalis pedis

23
Q

Direct branvhes off dorsalis pedis in dorsal aspect

A

Lateral and medial tarsal
Arcuate
Deep plantar artery
First dorsal metatarsal artery

24
Q

Branches from arcuate ligament

A

3 dorsal metatarsal arteries

25
Each dorsal metatarsal gives rise to
Two dorsal digital arteries
26
First dorsal digital is a branch of the
1st dorsal metatarsal
27
10th dorsal digital is branch of
4th dorsal metatarsal
28
what connects dorsal metatarsal arteries with deep plantar arch
perforating arteries
29
Deep plantar artery
One of the terminal branches of dorsalis pedis | Goes to plantar side and joins with deep plantar arch of lateral plantar artery
30
First dorsal metatarsal artery
terminal branch of dorsalis pedis | gives rise to three dorsal digital arteries
31
Veins
1. Dorsalis venous arch 2. Medial and lateral dorsal digital veins 3. Medial and lateral marginal veins 4. Great saphenous 5. Small saphenous
32
Dorsal venous arch gives off the
dorsal metatarsal veins | dorsal digital veins
33
Medial dorsal vein
1st toe
34
Lateral dorsal vein
5th toe