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Questions and Answers
What is the primary feature in the development of the head and neck?
During which weeks of development do the pharyngeal arches appear?
What forms the center of the face at the end of the fourth week?
How many mesenchymal prominences are recognized when the embryo is four weeks old?
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Which prominences contribute to the formation of the maxilla?
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What is noted about the foliate papillae in humans?
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What is a significant role of the branchial arches?
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Study Notes
Pharyngeal Arches
- Develop during the fourth and fifth weeks of development.
- Important for the formation of the neck and face.
Facial Development
- The stomodeum forms the center of the face at the end of the fourth week of development.
- Surrounded by the first pair of pharyngeal arches.
- Five mesenchymal prominences can be recognized at four weeks:
- Two mandibular prominences.
- Two maxillary prominences.
- One frontonasal prominence.
Foliate Papillae
- Rudimentary in humans.
- Develop on the lateral borders of the tongue near the sulcus terminalis.
- Epithelial growth forms ridges in the substance of the tongue.
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Description
This quiz explores the critical stages of embryonic development, focusing on the pharyngeal arches and their role in forming the face and neck. It also examines the development of facial prominences and the rudimentary foliate papillae on the tongue. Test your knowledge on these foundational concepts in human development.
