Question

Lesions to CN I (olfactory) result in anosmia. What is an example of a lesion that can cause anosmia?

1) Cribriform plate fracture
2) Temporal lobe injury
3) Optic nerve damage
4) Trigeminal nerve dysfunction

Answer 1

Lesions to the olfactory nerve (CN I) can result in anosmia. An example of a lesion that can cause anosmia is a cribriform plate fracture.

Step-by-step explanation:

Lesions to the olfactory nerve (CN I) can result in anosmia, which is the loss of the sense of smell. An example of a lesion that can cause anosmia is a cribriform plate fracture. The cribriform plate is a part of the ethmoid bone in the skull, and fractures in this area can damage the olfactory nerves that pass through it. When these nerves are damaged, the ability to smell is compromised, leading to anosmia.