HEAD NECK
SALIVARY GLANDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In course of embryogenesis maxillary and mandibular processes grew together with a delay. What development anomalies should be expected in this case?
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Microstomia
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Cleft of superior lip
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Gothic palate
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Cleft palate
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Macrostomia
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Explanation:
Detailed explanation-1: -Macrostomia as a rare facial deformity is classified among facial clefts. It originates from failure in union of maxillary and mandibular prominences of first brachial arch during 7th embryonic week.
Detailed explanation-2: -Macrostomia occurs when there is an abnormal fusion of the orotragal line, which is an embryonic fusion line extending from the lateral commissure to the tragus of the ear. Macrostomia is rare facial abnormality with a varying incidence of 1 in 60 000 to 1 in 300 000 live births.
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