Ossification of the foot bones

Question 1

Metatarsals

Answer 1

9-12 weeks in utero

Question 2

Phalanges

Answer 2

9-12 weeks in utero

Question 3

Talus

Answer 3

Month 6 in utero

Question 4

Calcaneus

Answer 4

4-7 months in utero

Question 5

Cuboid

Answer 5

Birth

Question 6

Lateral cuneiform

Answer 6

Year 1

Question 7

Medial cuneiform

Answer 7

Year 2

Question 8

Intermediate cuneiform

Answer 8

Year 3

Question 9

Navicular

Answer 9

Last to ossify in year 3

Question 10

When does the first metatarsal epiphysis first appear?

Answer 10

It is located in the base and appears first at year 3.

Question 11

When do the epiphysi for metatarsals 2-5 first appear?

Answer 11

These are located in the metatarsal head and appear during years 5-8.

Question 12

Where is the epiphysis of the phalanges found?

Answer 12

In the base.

They all have the diaphysis in the shaft as well.

Question 13

Of all the tarsal bones, which has an additional epiphysis in conjunction with the primary ossification center?

Answer 13

The calcaneus has an epiphysis in its posterior extremity as well as its primary ossification center that appears between months 4-7 in utero.