265_lab_manual_specialsenses_F13 - MODULE 1 SPECIAL SENSES...

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MODULE 1: SPECIAL SENSES An Introduction to Special Senses When we refer to the special senses, we are referencing the senses that have specialized organs devoted to them. This generally means taste (the tongue), smell (the nose), vision (the eyes) and hearing (the ears). This module will include some activities and require some research that will help you understand and appreciate the anatomy and function of these special senses. There will be an online worksheet that you will enter your answers on. You will be allowed to “ Save for Later ” and “ Submit ” the worksheet as many times as you want. However, there are a couple of things to keep in mind. 1. You will not be allowed to Submit your worksheet after the deadline. If you do not submit before the deadline, you may be able to work out a way to submit it as a late assignment but there will be point deductions. 2. If you Submit the lab assignment, and then decide to retake it before the deadline, all of your answers will be gone and you will have to retype all answers before submitting again. The lab worksheet has been reproduced for you on the following pages, so that you can work on things offline. If you have printed the lab manual, you might write notes in the textbox fields, or you might use a .pdf document annotator on your computing device. Whatever you decide to do is fine, but ultimately, only answers entered on the I-learn worksheet can be submitted for grading. Remember that the link to this worksheet looks like this… Module 9: Nervous Sys Module 10: Eyes/Ears
1 Follow the instructions below very carefully. Many of the items in this assignment require reading or videos or something else to do. Be sure to write your answers completely before submitting the assignment. There is an option in the bottom right to save your answers and come back later, but once you submit this assignment, it will be graded. Taste There are five basic modalities of taste: sweet, sour, salty, bitter and umami (the amino acid glutamate). Tastes of different substances are composed of different combinations of these 5 basic modalities combined with nuances from our sense of smell. **Note: the spiciness of hot peppers is generated by the chemical capsaicin, capsaicin does not activate any specific taste receptor cells. Capsaicin does stimulate pain receptors in the mouth however (probably why my youngest child always said ouch when eating jalapenos). While only 5 basic modalities exist for taste (and some pain receptors for spiciness) humans can distinguish among many hundreds of different chemicals with their taste buds. We as humans do have a lot of variability when it comes to how sensitive to flavors we are. CLICK HERE to read an article about "supertasters" CLICK HERE to watch a video about "supertasters" If you are attending the face to face lab on campus, follow your teacher s instructions on how to test yourself for taste sensitivity. If you are doing this lab strictly online CLICK HERE and follow all the instructions.

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