1 / 15

Olfactory and Taste

Olfactory and Taste. Hursh Patel Sharon Li . Do Now . Why do you think taste and smell work so closely together? How many taste buds does an average human have? What is a Tastant? What is an odorant? . Taste and Smell: Why?. Taste and smell are closely involved with each other

vevina
Download Presentation

Olfactory and Taste

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Olfactory and Taste Hursh Patel Sharon Li

  2. Do Now • Why do you think taste and smell work so closely together? • How many taste buds does an average human have? • What is a Tastant? • What is an odorant?

  3. Taste and Smell: Why? • Taste and smell are closely involved with each other • Perception of chemicals in the air and in our food • Food “tastes” different when the sense of smell is damaged • It explains why food tastes differently when a person is sick.

  4. The Mouth • Tastants are chemicals in food • Detected by taste buds • 5,000-10,000 taste buds • 1 taste bud contains 50-100 specialized sensory cells • located on the papillae • Distinguishes chemicals • Sweet, salty, sour, bitter, umami (savory)

  5. Signal messaging within the nose and the mouth

  6. How the mouth sends signals… • Signals are transferred to the ends of nerve fibers • Sends impulses along cranial nerves to taste regions in the brainstem • Impulses are relayed to the thalamus and onto Caudal Orbital cortex

  7. Mouth Review • How does the mouth send signals?

  8. The Nose • Odorants are airborne odor molecules • Mucus membrane is found at the roof of the nose • Contains sensory neurons through perforations (pores) through the bone • Cilia receive odorant stimuli at sensory neuron tips

  9. How the nose sends signals… • Signaling begins at the roof of the nose • Signals are sent to olfactory bulbs • Then processed in Caudal Orbital cortex

  10. Nose Review • How does the nose send signals?

  11. Smell perception • The activity pattern of odorants acting on receptors are sent to the olfactory bulbs • Then it forms a spatial map to be able to recognize smells. • This information is sent to the primary olfactory cortex

  12. THE END

  13. JUST KIDDING! ACTIVITY TIME!

More Related