Essentials of Anatomy and Physiology

Frontal bone

Anterior fontanel Parietal bone

Posterior fontanel Posterior fontanel

Mastoid fontanel

Temporal bone

Sphenoid fontanel

Mandible

Sphenoid bone

Zygomatic bone

Maxilla

Occipital bone

Occipital bone

Frontal bone

Parietal bone

Anterior fontanel

AB

C D

Figure 6–2. Infant skull with fontanels. (A) Lateral view of left side. (B) Superior view.

(C) Fetal skull in anterior superior view. (D) Fetal skull in left lateral view. Try to name the

bones; use part A as a guide. The fontanels are translucent connective tissue. (C and D pho-

tographs by Dan Kaufman.)

QUESTION:What is the difference between the frontal bone of the infant skull and that of

the adult skull?

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