Incidence of wormian bones in north India – a study on adult cadaveric dried skull

Aims & objective: The wormian bones are solitary, irregular bones that appear along with regular centres of ossification of cranium. The present study mainy aims at number, location of these wormian bones in the dried adult human skulls of north Indian population. The knowledge of sutural bones is essential for the radiologist and neurosurgeons in there clinical practice. Material method: About 55 dried human skull were collected from the department of anatomy, sims Hapur. These skull were examined for the presence of wormian bones, in respect to their location and number. After collection of data it was tabulated and analysed. Results: According to present study the incidence of wormian bone was28 out of 55 adult skulls. The maximum number of wormian bone at lambdoid suture 14(6 right, 8 left). The wormian bones were also seen at lambda 4, pterion 1, Asterion 3, pareitotemporal 3, occipitomastoid suture 1, sagital suture 1, bregma 1. Conclusion: The present study proves the occurrence of wormian bones in the human skull is common at lambdoid suture, also may occur at different sites at different sutures.