PALATOGENESIS

• Development of the is also known as palatogenesis
• The tissue underlying each nostril represents the first separation of the nasal cavity from the oral cavity, designated as the primary palate
• Palatogenesis (Secondary Palate) occurs during the embryonic and fetal stage while the face is developing
• The secondary palate is formed with two histological primordia - the primary palate and secondary palate
• During the 12th week, the primary and secondary palate fuse together with the nasal septum, forming the roof of the oral cavity or the floor of the nasal cavity
• Formation and elevation of the palatal shelves occur as the enlarging tongue pushes dorsally into the nasal cavity
• According to Glossogenesis, the two lateral lingual swellings merge, and the body of the tongue appears as a more unified structure
• Factors affecting normal palatal development include deficiencies of oxygen, various foodstuffs, vitamins, excesses of endocrine substances, drugs, and irradiation
• The human face is first characterized by invagination or dimple in the surface ectoderm layer just below the forebrain
• There is a shift in circulation in the face and palate during the critical period of the 7th and 8th week
• The stapedial artery arising from the internal carotid artery supplies most of the midfacial region
• The entire palate does not contact and fuse at the same time, with initial contact occurring in the central region of the secondary palate just posterior to the primary palatine process
• Different types of clefts probably occur due to factors affecting normal palatal development and the shifting of circulation (vascularity)
• Uranoschisis is a cleft of the hard palate, while Staphyloschisis is a cleft of the soft palate
• Representation of the most common types of cleft affecting the palate include unilateral cleft lip with alveolar involvement, bilateral cleft lip with alveolar involvement, unilateral cleft lip associated with cleft palate, bilateral cleft lip and palate, and cleft palate only
• Palatogenesis is also known as palatogenesis
• The tissue underlying each nostril represents the first separation of the nasal cavity from the oral cavity, designated as the primary palate
• Palatogenesis (Secondary Palate) occurs during the embryonic and fetal stage while the face is developing
• The secondary palate is formed with two histological primordia - the primary palate and secondary palate
• During the 12th week, the primary and secondary palate fuse together with the nasal septum, forming the roof of the oral cavity or the floor of the nasal cavity
• Formation and elevation of the palatal shelves occur as the enlarging tongue pushes dorsally into the nasal cavity
• According to Glossogenesis, the two lateral lingual swellings merge, and the body of the tongue appears as a more unified structure
• Factors affecting normal palatal development include deficiencies of oxygen, various foodstuffs, vitamins, excess of endocrine substances, drugs, and irradiation
• The human face is first characterized by invagination or dimple in the surface ectoderm layer just below the forebrain
• The blood supply to the face and palate undergoes a shift during the critical period of the 7th and 8th week of development
• The entire palate does not contact and fuse at the same time, with initial contact occurring in the central region of the secondary palate just posterior to the primary palatine process
• Different types of clefts may occur due to factors affecting normal palatal development and the shifting of circulation (vascularity)
• Uranoschisis is a cleft of the hard palate, while Staphyloschisis is a cleft of the soft palate
• Representation of the most common types of cleft affecting the palate include unilateral cleft lip with alveolar involvement, bilateral cleft lip with alveolar involvement, unilateral cleft lip associated with cleft palate, bilateral cleft lip and palate, and cleft palate only