This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: EXP 3202 Lecture Study Guide for Exam 3. 1. Use the nociceptor to describe how, in general, chemosensory cells work. Why does aspirin influence the activation of nociceptors and how do most antihistamines influence the activation of nociceptors. 2. What distinguishes olfactory stimuli from taste stimuli? What roles do chemosensory systems have in guiding behavior? 3. Using the figure published in the 2004 Nobel Prize press release, track the sequence of events leading from odorant to action potential in the brain. Some of the following questions will be part of this description. 4. Describe the non-neuronal parts of the olfactory system. What is the function of each? Describe the olfactory sensory receptor neuron. Be sure to include the key parts of the cell and where these parts are located. How do odorant molecules get to these cells? 5. Describe the olfactory receptor protein. Where on the olfactory sensory neuron is it located? Describe the transduction process of the olfactory receptor; what determines if the odor receptor will be activated and what happens when it is activated? Describe, in general, how GCPRs work. Discuss the genetics of olfactory receptor proteins. 6. What path does the axon of the olfactory sensory neuron take to get to the brain? What are some advantages and disadvantages of this route? Describe the wiring or connection pattern from the olfactory receptor cells to the olfactory bulb. How is it organized? What is the glomerulus? What cells are pre-synaptic and what cells are post-synaptic? 7. Explain what is meant by the shape-pattern theory. How is odor coded in the brain (labeled line or cross-fiber pattern?) What facts lead you to this conclusion?...
View Full Document
- Spring '12