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Questions and Answers
What are the pharyngeal arches?
What are the pharyngeal arches?
- Rod-like thickenings of mesoderm in the wall of the foregut (correct)
- Thickenings of ectoderm in the wall of the foregut
- Rudimentary structures not involved in development
- Surface elevations lateral to the developing pharynx
What do the pharyngeal arches contribute to?
What do the pharyngeal arches contribute to?
- Respiratory function
- Development of the brain
- Characteristic external appearance of the embryo (correct)
- Formation of limb buds
What is another name for pharyngeal arches?
What is another name for pharyngeal arches?
- Branchial arches (correct)
- Neural crest cells
- Pharyngeal grooves
- Pharyngeal pouches
What covers the pharyngeal arches externally?
What covers the pharyngeal arches externally?
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How many pairs of pharyngeal arches are visible externally by the end of the fourth week?
How many pairs of pharyngeal arches are visible externally by the end of the fourth week?
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