Development Of The Upper Lip

Question 1. Development of upper lip.
Answer:

Ectodermal thickening develops cranial to the stomatodeum.
These are called olfactory placodes.
Mesenchymal proliferation occurs resulting in the bulging of placodes
These convert the placodes into nasal pits.
The lateral arm of it is called the lateral nasal process and the medial arm is called the medial nasal process
The maxillary process from both sides grows medially.
This pushes the medial nasal process towards the midline where it fuses with that of the opposite side
This leads to the formation of the upper lip

“Understanding upper lip development through FAQs: Stages, functions, and uses explained”

Question 2. Describe the development of the palate.
Answer:

Development of palate:

The palate develops from.
- Two palatal shelves arising from the maxillary process
- frontonasal process.
The primary palate is developed from the frontonasal process.
The palatal shelves are directed first downward on each side of the tongue.
The tongue is withdrawn from between the shelves, now gels elevated.
Next, both the palatine shelves converge and fuse with each other and with the primary palate.
This results in separating the primitive oral easily into oral and nasal cavities.

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