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Chapter 22. The fetal skeleton. Fontanels. Anterior or frontal Palpable for the first 1 ½ to 2 years of age Posterior of occipital Closes by the end of the first year of age Mastoid Closes by the end of the first year of age Sphenoid Closes by the end of the first year of age.
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Chapter 22 The fetal skeleton
Fontanels • Anterior or frontal • Palpable for the first 1 ½ to 2 years of age • Posterior of occipital • Closes by the end of the first year of age • Mastoid • Closes by the end of the first year of age • Sphenoid • Closes by the end of the first year of age
Cranial bones • Frontal • It is parted • Temporal • It is incompletely ossified • Presence of ossification centers • Conical protusions on the cranial bones