Which of the following is the longest foetal diameter?
Mentoveical (point of the chin to 1 inch in front of posterior fontanelle in the sagital suture) is the longest fetal diameter (13.8 cm). Some of the impoant figures are given below: Suboccipitobregmatic - 9.4cm Occipitofrontal - 11.3cm Mentoveical - 13.8cm Submento bregmatic - 9.4cm Ref: Comp Text book of Obstetrics and Gynecology, Sadhana Gupta, 2011, Page 118
Suboccipitobregmatic
Occipitofrontal
Mentoveical
Submento bregmatic