Briefly describe the six fontanels of the infant skull including their location, shape and time of closure
What will be an ideal response
The unpaired anterior fontanel is located at the midline between the two parietal bones and the frontal bone. It is roughly diamond shaped and is the largest fontanel. It usually closes 18—24 months after birth. The unpaired posterior fontanel is located at the midline between the two parietal bones and the occipital bone. It is smaller than the anterior fontanel and closes about 2 months after birth. The paired anterolateral fontanels are located laterally between the frontal, parietal, temporal and sphenoid bones and are smaller in shape. They close about 3 months after birth. The paired posterolateral fontanels are located laterally between the parietal, occipital and temporal bones and are irregularly shaped. They begin to close 1 to 2 months after birth, but closure is not complete until 12 months.
Question type: Multiple Choice
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