04-03-2008, 01:16 PM
A newborn baby is noted to have a left unilateral cleft lip. There are no abnormalities of the baby's palate. Which of the following developmental defects accounts for this occurrence?
A. Failure of the left lateral palatine process to fuse with the median palatine process
B. Failure of the left maxillary prominence to unite with the left medial nasal prominence
C. Failure of the primary palate to fuse with the secondary palate
D. Failure of the right and left medial nasal prominences to merge
E. Failure of the right palatine process to fuse with the left palatine process
A. Failure of the left lateral palatine process to fuse with the median palatine process
B. Failure of the left maxillary prominence to unite with the left medial nasal prominence
C. Failure of the primary palate to fuse with the secondary palate
D. Failure of the right and left medial nasal prominences to merge
E. Failure of the right palatine process to fuse with the left palatine process