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Osteology of the Foot > Metatarsal Bones > Flashcards

Metatarsal Bones Flashcards

1
Q

What ligament is attached to the heads of all 5 metatarsal bones?

A

deep transverse metatarsal ligament

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2
Q

Which is the shortest metatarsal? Which is the longest?

A

shortest- 1st met

longest- 2nd met

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3
Q

What 2 tendons attach to the base of the 1st met?

A
  1. tibialis anterior- attaches to the medial surface of the base
  2. peroneus longus- attaches to the lateral surface of the base
    (both attach inferiorly near the plantar surface)
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4
Q

What two ligaments attach to the base of the 1st met?

A

dorsal and plantar cuneometatarsal ligaments

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5
Q

what muscle is attached to the shaft of the 1st met plantarly?

A

the medial head of the 1st dorsal interosseous muscle

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6
Q

on which bone are the sesamoids located?

A

1st met- has medial and lateral facets for sesamoid boines

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7
Q

the two facets for the sesamoid bones on the 1st met are separated by a small ridge of bone called what?

A

median crista

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8
Q

what does teh base of the 2nd met look like?

A

triangular shaped with the apex directed plantarly

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9
Q

describe the medial surface of teh base of teh 2nd met. how many facets are there? What do they articulate with?

A

1 small, oval facet for the medial cuneiform

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10
Q

describe the lateral surface of the base of the 2nd met. how many facets are tehre? What do they articulate with?

A

2 facets- one dorsal, one plantar separated by a ridge of bone

  • the 2 anterior demarcates are for the 3rd met
  • the 2 posterior demarcates are for the lateral cuneiform
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11
Q

what ligaments attach to the dorsal surface of the base of the 2nd met?

A
  1. dorsal intermetatarsal ligament to the 3rd met

2. three dorsal cuneometatarsal ligaments, one from each cuneiform

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12
Q

what structures attach to the plantar surface of the base of the 2nd met?

A
  1. long plantar ligament
  2. tibialis posterior
  3. plantar cuneometarsal ligament
  4. plantar intermetatarsal ligament
  5. adductor hallucis (oblique head)
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13
Q

what two ligaments attach to the lateral surface of the base of the 2nd met?

A

interosseous intermetatarsal

interosseous cuneometatarsal

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14
Q

what ligament attaches to the medial surface of the base of the 2nd met?

A

Lisfranc’s ligament

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15
Q

Describe the lateral surface of the 3rd met.

A

has a small oval facet for articulation with the 4th met

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16
Q

Inferior to the facet on the lateral surface of the 3rd met lies a groove for which ligament?

A

interosseous intermetatarsal ligament

17
Q

the groove for the interosseous intermetatarsal ligament is distinctively found on the lateral surface of which bone?

18
Q

describe the medial surface of the base of the 3rd met.

A

has two demarcates- one dorsal and one plantar- for the articulation with the 2nd met
*an interosseous intermetatarsal ligament attaches to the emdial surface

19
Q

what 3 ligaments attach to the dorsal surface of teh base?

A

two dorsal intermetatarsal ligaments

dorsal cuneometatarsal ligament

20
Q

which structures attach to the plantar aspect of the base of the 3rd met?

A
  1. oblique head of adductor hallucis
  2. tibialis posterior
  3. long plantar ligament
  4. plantar cuneometatarsal ligament
  5. two plantar intermetatarsal ligaments
21
Q

what muscles originate from the shaft of the 3rd met?

A
  1. lateral head of the 2nd dorsal interosseous
  2. medial head of the 3rd dorsal interosseous
  3. first plantar interosseous
22
Q

the posterior surface of the base of which met has a quadrilateral shaped facet?

A

4th met

is for articulation with cuboid

23
Q

describe the medial surface of the base of the 4th met.

A

oval facet- divided by a ridge- the anterior part articulates with 3rd met, the posterior part articulates with the lateral cuneiform

24
Q

what are the 3 ligaments that attach to the dorsal surface of the base?

A
  1. two dorsal intermetatarsal ligaments (to 3rd and 5th met)

2. dorsal cuboideometatarsals

25
Q

what are the structures attached to the plantar surface of the 4th met?

A
  1. adductor hallucis (oblique head)
  2. tibialis posterior
  3. long plantar ligament
  4. plantar cuboideometatarsals ligament
  5. plantar intermetatarsal ligaments (to 3rd and 5th met)
26
Q

describe the lateral surface of the 4th met.

A

has a large facet for the 5th met

*an interosseous intermetatarsal ligament is attached to this surface

27
Q

the shaft of the 4th met serves as the origin for what muscles?

A
  1. lateral head of the 3rd dorsal interosseous
  2. medial head of the 4th dorsal interosseous
  3. second plantar interosseous
28
Q

what is the apex of the base of the 5th met aka?

A

styloid process of the 5th met

29
Q

Describe the posterior and medial surface of the 5th met.

A

posterior surface- has a triangular facet for teh cuboid

medial surface- has a triangular or oval facet for the 4th met

30
Q

what muscle inserts at the tuberosity of the 5th met (on the lateral surface of the base)?

A

peroneus brevis

31
Q

what muscle inserts onto the dorsal surface of teh base and the dorsal surface of teh shaft of the 5th met?

A

peroneus tertius

32
Q

what ligament attaches to the medial surface of the 5th met?

A

interosseous intermetatarsal lgiament

33
Q

the plantar surface of the base of the 5th met is grooved by the tendon for which muscle?

A

abductor digiti quinti

34
Q

what structures are attached to the plantar surface of the 5th met?

A
  1. flexor digiti quinti brevis
  2. plantar ligament of the sole
  3. plantar cuboideometatarsals ligament
  4. plantar intermetatarsal ligament
35
Q

the shaft of the 5th met serves as origin for what?

A
  1. lateral head of the 4th dorsal interosseous

2. third plantar interosseous

Osteology of the Foot (8 decks)

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