Question
Nerves of branchial arch develop from
| A. |
Neuroectoderm
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| B. |
Neural crest cells
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| C. |
Mesoderm
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| D. |
Endoderm
|
Show Answer
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Correct Answer » B
Explanation
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Correct Answer:
– Neural crest cells give rise to the peripheral neurons and Schwann cells of the branchial arches.
– They are essential for the development of the cranial nerves associated with the arches, which are integral to their function.
Incorrect Options:
A. Neuroectoderm – Develops into the central nervous system and retina, not branchial arch nerves.
C. Mesoderm – Forms the musculoskeletal system and connective tissue components of the arches, not their nerves.
D. Endoderm – Develops into internal organ linings and structures, not nervous tissue.
High-Yield:
– Neural crest cells differentiate into a diverse array of structures, including peripheral nerves and cranial nerve ganglia.
– They are pluripotent, contributing to both neuronal and non-neuronal tissues in the developing embryo.
