chemical senses - As human beings we have many different...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
As human beings, we have many different senses that allow us to explore the world around us. Two sense that are often overlooked and taken for granted are taste and smell. Our chemical sense of taste holds about ten thousand taste buds while our chemical sense of smell can detect twenty thousand different odors in ten different intensities. This is amazing seeing how our sense of taste only has roughly five different variations. Usually, we can consider smell and taste vital for being able to stop and smell the roses or enjoy a delicious home cooked meal, but the uses are far more important than that. While both have the ability to help us enjoy the environment around us, they can also protect us, help us find connections, as well as bring up memories. While both taste and smell have abilities of their own, these two senses also go hand in hand affecting each other. Sensations from our noses and mouths alert us to pleasure, danger, food and drink in the environment. The complicated processes of smelling and tasting begin when molecules detach from substances and float into noses or are put into mouths. In both cases, the molecules must dissolve in watery mucous in order to bind to and stimulate special receptor cells. These cells transmit messages to brain areas where we perceive odors and tastes, and where we remember people, places, or events associated with these olfactory, smell and gustatory, taste sensations. The neural systems for these two chemical senses can distinguish thousands of different odors and flavors. Identification begins at membrane receptors on sensory cells, where odorant or taste molecules fit into molecular slots or pockets with the right "lock and key" fit. This latching together of ligand and membrane receptor leads to the production
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern