Which one of the following is the smallest antero-posterior engaging diameter on the fetal skull?
A. Suboccipito frontal
B. Occipito frontal
C. Mento vertical
D. Submento-bregmatic
Answer:D
Which one of the following is the smallest antero-posterior engaging diameter on the fetal skull?
A. Suboccipito frontal B. Occipito frontal C. Mento vertical D. Submento-bregmatic