PSY101- Chapter 5

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Dec 6, 2023

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Chapter 5 Writing Assignment Amy Edwards Department of Psychology, Eastern Gateway Community College PSY101: Intro to Psychology Dr. Kristen Jeffries November 12, 2023

2 Chapter 5 Writing Assignment When most people think about the five senses, they think that sight would be the most important, but what if you couldn’t see. I believe that one of the most important senses is smell. Olfactory receptor cells are located in a mucous membrane at the top of the nose. Small hair-like extensions from these receptors serve as the sites for odor molecules dissolved in the mucus to interact with chemical receptors located on these extensions (Spielman, 2020). Once an odor molecule has bound a given receptor, chemical changes within the cell result in signals being sent to the olfactory bulb: a bulb-like structure at the tip of the frontal lobe where the olfactory nerves begin. From the olfactory bulb, information is sent to regions of the limbic system and to the primary olfactory cortex, which is located very near the gustatory cortex (Spielman, 2020). This simple means that when you smell it gets processed through your brain to let you body know what it is. However, there is also evidence that when you smell it also effects how you taste your food. The flavor of some foods comes primarily from the smell of it (Valle, 2017). Think about when you have a stuffed-up nose during a head cold – food doesn’t quite taste the same, right (Valle, 2017)? When we chew and swallow, odor molecules from our food goes up behind our palate and through the back of our nasal cavity (like smoke going up a chimney) (Valle, 2017). These molecules activate odor receptors located here, of which there are nearly 400 different types (Valle, 2017).

3 References Spielman, R. M., Jenkins, W. J., & Lovett, M. D. (2020). Psychology 2e. Rice University. Shelley Valle. (2017, October 06). Smell and Taste. ASU - Ask A Biologist. Retrieved November 9, 2023 from https://askabiologist.asu.edu/smell-taste

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