Osteology of the Leg, Ankle and Foot.

Question 1

Lower leg

Answer 1

Tibia and fibula, interosseous membrane between them.

Question 2

Articular surface for fibula

Answer 2

On distal angle of lateral condyle of tibia.

Question 3

Fibular notch

Answer 3

Most proximal part of fibula, concave area.

Articulates with the tibia.

Question 4

Interosseus surface of tibia

Answer 4

Marks the lateral margin of the bone.
Extends from the fibular articular surface above to the fibular
notch (of the tibia) below.

Question 5

Medial malleolus

Answer 5

Pyramidal projection on the distal end of the tibia

on the medial side on the ankle.

Question 6

Lateral malleolus

Answer 6

Projection on the distal lateral fibula.

Question 7

Subdivisions of the foot

Answer 7

Anatomical

Functional

Question 8

Anatomical subdivision

Answer 8

Tarsus: Talus, calcaneus, navicular, cuneiforms, cuboid.
Metatarsus: Metatarsals 1-5.
Antetarsus: Phalanges.

Question 9

Functional subdivision

Answer 9

Hindfoot: Talus, calcaneus.
Midfoot: Navicular, cuneiforms, cuboid, metatarsals.
Forefoot: Phalanges.

Question 10

Talus

Answer 10

Sits in the ankle joint, makes up the inferior part of the talocrural joint.
Sits on top of calcaneus, subtalar joint.
Connects anteriorly to the navicular.

Question 11

Calcaneus

Answer 11

Heal bone.
Articulates with cuboid and talus.
Calcaneus tuberosity is insertion point for Achilles tendon.

Question 12

Navicular

Answer 12

Long bone on medial side.
Navicular tuberosity is medial bony projection on the navicular arch.
Articulates with talus and cuneiforms 1-3.

Question 13

Tarsal bones

Answer 13

Cuneiforms
Cuboid 
Navicular
Talus
Calcanous

Question 14

Cuneiforms

Answer 14

3 bones. Medial, intermediate, lateral(not the most lateral on the foot).
Articulates with the navicular and 
Medial - 1st metatarsal
Intermediate - 2nd metatarsal
Lateral - 3rd metatarsal

Question 15

Cuboid

Answer 15

Bigger tarsal bone, most lateral.

Articulates with calcaneus and metatarsals 4&5, lateral cuneiform.

Question 16

Metatarsals

Answer 16

5 Bones. 1st is big toe, 5th is pinky toe.
Base= the proximal end
Neck= distal end of metatarsal
Head= distal to the neck
Articulates with cuneiform, cuboid, phalanges.
One of the most common fractures is at the base of metatarsal 5.

Question 17

Phalanges

Answer 17

1st has two phalanges. 2-5 have 3 phalanges.
Priximal/distal Proximal/intermediate/distal.
Proximal phalanges articulate with head of metatarsals.
Phalanges also articulate with each other.