Question

Trigeminal nuclei integrate face/head somatosensory information from which cranial nerves?

1) Olfactory nerve
2) Optic nerve
3) Oculomotor nerve
4) Trigeminal nerve

Answer 1

The trigeminal nuclei integrate somatosensory information mainly from the trigeminal nerve, with contributions from the facial and glossopharyngeal nerves, but not from the olfactory, optic, or oculomotor nerves.

Step-by-step explanation:

The trigeminal nuclei integrate face and head somatosensory information primarily from the trigeminal nerve (Cranial Nerve V), which is the main nerve responsible for conveying sensation from the face, head, mouth, and nasal cavity. Aside from the trigeminal nerve, other nerves that carry somatosensory information of the face include the facial and glossopharyngeal nerves. However, the olfactory (Cranial Nerve I), optic (Cranial Nerve II), and oculomotor (Cranial Nerve III) nerves do not convey general somatosensory information; they are responsible for smell, sight, and eye movements, respectively.