The bony opening in the cranial cavity through which it exits. Its general course and the branches that have been discussed in lecture. Any additional openings in bone that the nerve or its branches pass through. Know the target organ or region supplied by each. The primary sensory neurons are in the olfactory epithelium.
Olfactory epithelium is located on the roof of the nasal cavity.
The central processes from the sensory neurons form into about 20 groups of axons that traverse the cribriform plate of ethmoid bone to synapse on secondary neurons in olfactory bulb. Conveys visual information from the retina to the brain. The nerve enters the orbit by passing through the superior orbital fissure. Autonomic axons supply the Mm that regulate the size of the pupil and control the shape of the lens. The nerve enters the proximal portion of the superior oblique on the dorsal surface.