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A cleft lip contains an opening in the upper lip that may extend into the nose. [ 1] The opening may be on one side, both sides, or in the middle. [ 1] A cleft palate occurs when the palate (the roof of the mouth) contains an opening into the nose. [ 1] The term orofacial cleft refers to either condition or to both occurring together.
Maxillary hypoplasia. Maxillary hypoplasia, or maxillary deficiency, is an underdevelopment of the bones of the upper jaw. It is associated with Crouzon syndrome, Angelman syndrome, as well as Fetal alcohol syndrome. It can also be associated with Cleft lip and cleft palate. Some people could develop it due to poor dental extractions.
Primitive palate of a human embryo of thirty-seven to thirty-eight days. Around the 5th week, the intermaxillary segment arises as a result of fusion of the two medial nasal processes and the frontonasal process within the embryo. The intermaxillary segment gives rise to the primary palate. The primary palate will form the premaxillary portion ...
Van der Woude syndrome. Van der Woude syndrome (VDWS) is a genetic disorder characterized by the combination of lower lip pits, cleft lip with or without cleft palate (CL/P), and cleft palate only (CPO). [ 1] The frequency of orofacial clefts ranges from 1:1000 to 1:500 births worldwide, and there are more than 400 syndromes that involve CL/P ...
Cleft lip and clip palate is an "umbrella term" for a heterogeneous collection of orofacial clefts. It includes clefting of the upper lip, the maxillary alveolus (dental arch), and the hard or soft palate, in various combinations. The anatomic combinations include: [ 1] cleft lip [CL] cleft lip and alveolus [CLA]
Secondary palate development. Under surface of the head of a human embryo about twenty-nine days old (After His.). The palatal shelves are yet to form from the maxillary processes. Frontal section of nasal cavities of a human embryo 28 mm. long (Kollmann) at about forty-four days. The two palatine processes can be seen here post-elevation in a ...
A high-arched palate (also termed high-vaulted palate) is where the palate is unusually high and narrow. It is usually a congenital developmental feature that results from the failure of the palatal shelves to fuse correctly in development, the same phenomenon that leads to cleft palate. [ 1] It may occur in isolation or in association with a ...
Pharyngeal arch. The pharyngeal arches, also known as visceral arches, are structures seen in the embryonic development of vertebrates that are recognisable precursors for many structures. In fish, the arches are known as the branchial arches, or gill arches. In the human embryo, the arches are first seen during the fourth week of development.