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noun, Anatomy.
the enlarged terminal part of each olfactory lobe from which the olfactory nerve originates.
the anterior and slightly enlarged end of the olfactory tract, from which the cranial nerves concerned with the sense of smell originate

olfactory bulb n.
The bulblike distal end of the olfactory lobe where the olfactory nerves begin.


Read Also:

  • Olfactory epithelium

    olfactory epithelium n. Pseudostratified epithelium that contains olfactory, receptor, and nerve cells whose axons connect with the olfactory bulb of the brain.

  • Olfactory foramen

    olfactory foramen n. Any of the openings in the cribriform plate of the ethmoid bone, transmitting the olfactory nerves.

  • Olfactory gland

    olfactory gland n. Any of the branched tubuloalveolar glands situated in the mucous membrane of the olfactory region of the nasal cavity that produce mucus to moisten the olfactory epithelium and dissolve odor-containing gases. Also called Bowman’s gland.

  • Olfactory groove

    olfactory groove n. The sagittal groove on the lower or orbital surface of each frontal lobe of the cerebrum, demarcating the straight gyrus from the orbital gyri. Also called olfactory sulcus.

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