This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pharyngeal arch and its derivatives, pharyngeal arch aeries, Subject name: Anatomy
Formation of primary palate is from which of the following ? 
Select and explain. 
A. Lateral nasal prominences, B. Medial nasal prominences, C. Maxillary prominences, D. Mandibular prominences
B: Medial nasal prominences
Answer: B: Medial nasal prominences 
Explanation: Definitive palate =Fusion of primary and secondary palate ventrally in a Y shaped manner. Primary palate- From inter-maxillary segment (fusion of 2 medial nasal prominence) Secondary palate-From fusion of lateral palatine process ( from maxillary process)