Fig. 4From: A feasible method to evaluate fetal palate: sequential sector-scan through oral fissureApplied SSTOF on the routine examination (from the front of fetal face, gestational age:23 W). 1/2/3/4 respectively represent continuous sequence sections. A: lower alveolar ridge. B: pharynx. C: soft palate. D: hard palate. E: upper alveolar ridge. F: Primary palateBack to article page