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The Special Senses Olfactory Sense.

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Presentation on theme: "The Special Senses Olfactory Sense."— Presentation transcript:

1 The Special Senses Olfactory Sense

2 Olfactory Senses The Nose …

3 Review: Cranial Nerve Olfactory Bulb Olfactory Tracts

4 Olfactory Sense Olfactory epithelium: Mixture of receptors
Support cells Glands Basel stem cells Olfactory Receptor Cell

5 Olfactory Sense Olfactory Receptor Cells
Video Clip Olfactory Receptor Cells Contain an exposed knob with up to 20 cilia covered in mucus… Pick up dissolved odorant Axons penetrate Cribriform plate to synapse into Olfactory Bulb Olfactory bulb synapse into Olfactory Tract Olfactory Tract synapse into Olfactory Cerebral Cortex Olfactory Cortex synapse into Hypothalamus Able to distinguish between odorants! Specialize to respond to certain chemicals..!!

6 Olfactory Cortex & Hypothalamus

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