Metatarsals

Question 1

Bases of metatarsal bones articulate with…

Answer 1

Distal row of tarsal bones

Bases of metatarsals 2-5 articulate with each other

Question 2

Longitudinal curves of metatarsal shafts

Answer 2

convex dorsally

concave plantarly

Question 3

Metatarsal heads

Answer 3

convex
Plantar surface extends proximally further than dorsal
Transverse metatarsal ligament attaches to all 5 heads

Question 4

First metatarsal

Answer 4

thickest, heaviest, strongest, shortest

Question 5

Base of First Metatarsal

Answer 5

very broad
Posterior articular surface has concave reniform facet for medial cuneiform
Triangular w/three surfaces: inferior, medial, lateral

Question 6

Tendons attached to First Metatarsal (2)

Answer 6

Tibialis anterior attaches to medial base
Peroneus longus attaches to lateral base
Both attach inferiorly near plantar surface

Question 7

Ligaments attached to First Metatarsal (2)

Answer 7

Dorsal cuneometatarsal ligament on medial surface

Plantar cuneometatarsal ligament on lateral surface

Question 8

Shaft of First Metatarsal

Answer 8

Very concave plantarly
Three surfaces: lateral, inferior, dorsomedial
medial head of first interosseous attaches to lateral shaft

Question 9

Head of First Metatarsal

Answer 9

anterior (distal) surface continuous with plantar surface with facets for medial/lateral sesamoids

Question 10

Median Crista

Answer 10

small ridge of bone separating sesamoid facets on plantar surface of first met head

Question 11

First Met only: which is greater, the transverse diameter or the vertical diameter of the head

Answer 11

Transverse diameter is greater in first metatarsal

Vertical diameter is greater for all other toes

Question 12

Second Metatarsal

Answer 12

longest
extends more proximally
articulates with all three cuneiforms

Question 13

Base of Second Metatarsal

Answer 13

wedge-shaped or pyramidal with apex directed plantarly

three borders: dorsal, lateral, medial

Question 14

Facets for Cuneiforms

Answer 14

Posterior surface - triangular facet for intermediate
Medial surface - small oval facet for medial, with second facet occasionally
Lateral surface - two facets (dorsal/plantar) demarcated by ridge of bone - posterior facets for lateral

Question 15

dorsal/plantar anterior facets of lateral base of second met articulate with

Answer 15

third metatarsal

Question 16

Ligaments attached to dorsal surface of base of second metatarsal (4)

Answer 16

Dorsal intermetatarsal ligament to third metatarsal

Three dorsal cuneometatarsal ligaments to each cuneiform

Question 17

Structures attached to plantar surface of base of second metatarsal (5)

Answer 17

Long plantar ligament
Tibialis posterior
Plantar cuneometatarsal ligament 
Plantar intermetatarsal ligament
Adductor hallucis (oblique head)

Question 18

Ligaments attached to lateral surface of base of second metatarsal (2)

Answer 18

Interosseous intermetatarsal ligament

Interosseous cuneometatarsal ligament

Question 19

Ligament attached to medial surface of base of second metatarsal

Answer 19

Lisfranc’s ligament

Question 20

Structures attached to shaft of second metatarsal (2)

Answer 20

lateral head of first dorsal interosseous on medial surface

Medial head of second dorsal interosseous on lateral surface

Question 21

Head of second metatarsal

Answer 21

convex distally

articular surface diverges into lateral/medial condyles

Question 22

What passes between medial/lateral condyles of second metatarsal head

Answer 22

flexor tendons