4. AREAS AND DIAMETERS OF SKULL VERTEX OCCIPUT SINCIPUT 11.5CM 14CM 10CM 9.5CM 9.5CM Mento-vertical Occipito-Frontal Suboccipito-bregmatic Submento-bregmatic Suboccipito-frontal SINCIPUT
5. Diameters of skull Diameters Definition cm Attitude Presentation Suboccipito-bregmatic Extend fr the nape of the neck to the centre of bregma 9.5 Complete flexion Vertex Suboccipito-frontal Extends fr the nape of neck to the anterior end of the fontanelle or centre of the sinciput 10 Incomplete flexion Vertex Occipito-frontal Extends fr the occipital eminence to the root of nose 11.5 Marked deflexion Vertex Mento-vertical Fr the midpoint of the chin to the highest point on the sagittal suture 14 Partial extension Brow Submento-vertical Fr the junction of the floor of mouth &neck to the highest point on the sagittal suture 11.5 Incomplete extension Face Submento-bregmatic Fr the junction of floor of the mouth &neck to the centre of the bregma 9.5 Complete extension Face