BIOL373 Study Guide - Midterm Guide: Olfactory Receptor Neuron, Olfactory Bulb, Taste Bud
6 Feb 2018
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Document Summary
Humans are only species known to seek out bitter foods. Olfactory epithelium in nose houses the neurons. Bulb is collection of second order neurons. Closely linked with taste and emotion/memory (even in humans) Supporting cells can change their pathway and make olfactory neurons. Olfactory receptor neurons (orns) part of brain and huge in the olfactory bulb (therefore brain) In mammals other than human, olfactory bulb is a prominent portion of the brain most anterior. Bitter (cid:523)many compounds warning of possible toxicity(cid:524) Each receptor can recognize more than one odorant. Each odorant can stimulate more than one receptor. Input from 100s of olfactory neurons in combination is then interpreted as a particular odour. Humans have 1000s of different types of receptors. Frequently come into contact with noxious chemicals. Are different shapes in different distributions, but they are considered all the same.
