Submentovertical diameter is the longest diameter of fetal skull. The… — Obsterics & Gynecology

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Submentovertical diameter is the longest diameter of fetal skull.

The submentovertical diameter extends from the junction of the floor of the mouth and neck to the highest point on sagittal suture.

Shortest diameters of fetal skull: Bimastoid (7.5 cm) > Bitemporal (8 cm)

Longest diameter

vertical (14 cm) > Supmentovertical

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