Skip to main content

Unfortunately we don't fully support your browser. If you have the option to, please upgrade to a newer version or use Mozilla Firefox, Microsoft Edge, Google Chrome, or Safari 14 or newer. If you are unable to, and need support, please send us your feedback.

Elsevier
Publish with us
Olfactory Nerve
Nervous System

Olfactory Nerve

Nervus olfactorius

Read more

Origin

The olfactory nerves originate in the nasal mucosa. They are formed by the olfactory sensory neurons that merge into olfactory nerve bundles.

Course

From the nasal mucosa, the olfactory nerves pass through the cribriform foramina of the ethmoid bone to reach the anterior cranial fossa. Here, the olfactory nerves enter the olfactory bulb.

Branches

There are no named branches.

Supplied Structures

The olfactory nerves are sensory and convey the sense of olfaction to the brain. Its main target is the primary olfactory cortex, located in the uncus and entorhinal cortex of the temporal lobe. Additional axons will target the amygdala and other parts of the limbic system.

List of Clinical Correlates

—Anosmia

Learn more about this topic from other Elsevier products

Anatomy of the olfactory (CN I) and optic (CN II) nerves

Osmosis image

Anatomy of the olfactory (CN I) and optic (CN II) nerves Videos, Flashcards, High Yield Notes, & Practice Questions. Learn and reinforce your understanding of Anatomy of the olfactory (CN I) and optic (CN II) nerves.

Explore on Osmosis(opens in new tab/window)

Olfactory Nerve

ScienceDirect image

both are dependent on the concerted activity of Hox genes and other transcriptional regulators in peripheral and central nervous system.

Explore on ScienceDirect(opens in new tab/window)

Complete Anatomy

The world's most advanced 3D anatomy platform

Complete Anatomy