A fissure in the upper lip due to failure of fusion of the lip. Since failure of lip fusion can impair the subsequent closure of the palatal shelves, cleft lip often occurs in association with cleft palate. An opening in the roof of the mouth, due to a failure of the palatal shelves to come fully together from either side of the mouth and fuse during embryonic development. The opening in the palate permits communication between the nasal passages and the mouth. Surgery is needed to close the palate.
Cleft palate can occur alone without cleft lip or in association with cleft lip.
The application of law to ensure that an individual's rights are protected. When applied to children with learning disabilities, due process means that parents have the right to request a full review of any educational program developed for their child. A due process hearing may be requested to ensure that all requirements of Public Law 94-142 have been met. Abnormal in form. For example, retinal dysplasia is abnormal formation of the retina during embryonic development .