Development of face, external nose and salivary glands Flashcards
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When does the development of the face begin?
At the end of the 4th week
What are the 5 facial primordia
Single median frontonasal prominence
Paired maxillary and mandibular process
Where are the 5 facial primordia derived from
1st pharyngeal arch
What is the stomodeum
Primitive mouth
When does the mandibular process merge?
4th week
Lower jaw and lip are the first to appear . True or False
True
How long does the facial development take
4-8 weeks
When does the nasal placodes start to develop
End of the 4th week
What separates the lateral nasal prominence from the maxillary prominence
Nasolacrimal Groove
Week 5 the structures of the ear are formed. True or false?
True- 6 auricular hillocks
Which 2 processes merge in the 6th week
Maxillary and Medial Nasal processes
The nasolacrimal groove is formed in the 6th week. True or False?
True
What 2 prominences forms the cheek when fused
Maxillary and Mandibulary prominences
What develops at the end of the 6th week
Primitive jaw
What gives rise to lips and gums
Labiogingival lamina- frows into underlying mesenchyme
