![]() ![]() Vertex- This is bounded by posterior fontanelle, 2 parietal eminences & by the anterior fontanelle.The skull is divided into 3 parts with obstetrical importance. It closes by 6 weeks of age.Īnd the other 2 with less obstetrical significance is anterolateral (Sphenoid) and posterolateral fontanelles (Mastoid). ![]() This is situated at the junction of the lambdoidal and sagittal sutures. Posterior Fontanelle / Lambda- (shape greek like λ ) It is broad kite-shaped and it measures 3-4 cm long and 1.5-2 cm wide and normally closes by 18 months. This is found at the junction of sagittal, coronal, and frontal sutures. Where 2 or more sutures meet, a fontanelle is formed.
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