Question

question 10 of 10
which cranial nerves provide parasympathetic innervation to the body?
cranial nerve vii facial nerve
cranial nerve iii oculomotor nerve
all of these cranial nerves
cranial nerve x vagus nerve

Explanation:

• Cranial nerve III (oculomotor nerve) has parasympathetic fibers that innervate the ciliary muscle (for accommodation) and the sphincter pupillae (for pupil constriction).
• Cranial nerve VII (facial nerve) has parasympathetic components that innervate the lacrimal gland (tear production), sublingual and submandibular salivary glands.
• Cranial nerve X (vagus nerve) provides extensive parasympathetic innervation to the thoracic and abdominal viscera (e.g., heart, lungs, digestive organs).

Answer:

C. All of these cranial nerves