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DHYG341-34
Dental Embryology Terminology Week 2
Question | Answer |
---|---|
stomodeum | - formed as head bends towards heart - primitive oral cavity - separated from the foregut by buccopharyngeal membrane - formed between 3-4 weeks by invagination |
intermaxillary segment | - bilateral medial nasal process |
primary palate | - formed from the median nasal process, first palate to form is anterior to the second plate - develops first and is floor to nasal pits - anterior wedge is called the primary palate because it forms first |
secondary palate | - formed by fusion of the lateral palatine processes of the maxilla - early secondary palate formationweek 8 - secondary palate formation week 9 begin to fuse |
tuberculum impar | - central tissue of the tongue eventually overgrown by the two lateral tissues - also called median lingual tongue bud - median elevation of tissue - first indication of tongue development week 4 |