18 Questions
At which week of development do the lateral palatine processes/palatal shelves begin to ascend to a horizontal position?
6th week
What is the main factor in the closure of the secondary palate?
Displacement of the tongue from between the palatine shelves by the growth pattern of the head
What is the structure that is formed by the merging of two medial nasal prominences?
Intermaxillary Segment
What is the role of the tongue in the development of the secondary palate?
It is displaced from between the palatine shelves
What part of the hard palate does the primary palate represent in the adult?
A small part lying anterior to the incisive fossa
What is the origin of the bridge or root of the nose?
Frontal prominence
From which structure do the lateral palatine processes/palatal shelves develop?
Maxillary processes
What is the time period during which the primary palate develops?
5th - 6th week of I.U life
What is the origin of the palatal shelves?
Maxillary processes
What is the primary outcome of the adhesion of the epithelia of the two palatine shelves?
Formation of a midline epithelial seam
What is the final stage of palatogenesis?
The fusion of all processes
During which week does the fusion of the palatal shelves with the nasal septum begin?
9th week
What is the origin of the primary palate?
Fusion of two medial nasal processes
What is the outcome of the breakdown of the oronasal membrane?
Formation of the primitive choanae
What is the origin of the median palatine process?
Deep part of the intermaxillary segment
What is the characteristic of the surface coat of the basal epithelial cells?
Rich in carbohydrates
What is the result of the transformation of epithelial cells into mesenchymal cells?
Loss of epithelial characteristics
What develops in the posterior part of the palate?
Soft palate
This quiz covers the formation and development of the palate, including the primary and secondary palate, and their components. It is a crucial concept in embryology and is often tested in exams. Test your knowledge of this important topic!
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
