Olfactory Cortex

1. The olfactory tubercle is variably considered part of the primary olfactory cortex, as well as intermediate olfactory cortex. 2. It's the anterior entorhinal cortex that categorizes within the primary olfactory cortex. 3. The distinction between the primary and secondary olfactory cortices is highly variable; as an example, certain texts include the entorhinal cortex as secondary olfactory cortex rather than as primary cortex. 4. Although the piriform cortex in rats, the animal model for olfaction, is extensive and functionally important, its size and significance in humans is not yet known.