When Does the Skull Become Completely Ossified

Question

When does the skull become completely ossified?
A) At birth
B) Three months of age
C) Six months of age
D) Two years of age

Accepted Answer

The skull consists of many bones that need to fuse together in order to form a solid structure. This process of fusion is called ossification. The anterior and posterior fontanels, or soft spots, on a baby's skull allow for flexibility and growth during delivery and the first few months of life. The ossification process is not complete at birth, but rather continues throughout infancy and early childhood. The skull bones become completely ossified by around two years of age. Therefore, choice D, two years of age, is the correct answer.