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7357 Anatomy

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?

AFailure of the left lateral palatine process to fuse with the median palatine process
BFailure of the left maxillary prominence to unite with the left medial nasal prominence (Correct Answer)
CFailure of the primary palate to fuse with the secondary palate
DFailure of the right and left medial nasal prominences to merge