Metopic sutures closes at ?

Ans. is 'c' i.e., 6 years Infant's skull consists of following sutures :- Coronal suture Saggital suture Lambdoid suture Metopic suture (median frontal suture). Coronal suture: This is placed between the frontal bone and the two parietal bones. The suture crosses the cranial vault from side to side and runs downwards and forwards. Sagittal suture: It is placed in the median plane between the two parietal bones. Lambdoid suture: It lies posteriorly between the occipital and the two parietal bones, and it runs downwards and forwards across the cranial vault. Metopic suture: This is occasionally present in about 3 to 8% individuals. It lies in the median plane and separates the two halves of the frontal bone. Normally it fuses at 6 years of age.