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Pharyngeal arch 2 gives rise to what CN?

User Twomz
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Final answer:

The second pharyngeal arch gives rise to the facial nerve, CN VII, which contains preganglionic parasympathetic fibers and innervates the muscles of facial expression.

Step-by-step explanation:

The pharyngeal arch 2, also known as the second branchial arch, gives rise to several structures in the human body, including nerves. When it comes to what cranial nerve (CN) is derived from the second pharyngeal arch, the correct answer is the facial nerve, CN VII. The facial nerve is responsible for innervating the muscles of facial expression, and it contains preganglionic parasympathetic fibers which play a role in functions such as salivation and lacrimation. The pharyngeal arches are critical in the development of many head and neck structures during embryogenesis.

User Bourkadi
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