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Lecture Objectives

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Lecture 21 objectives and supplement on “Optics and the Eye”.
1.

Distinguish between somatic and special senses.

2.

Explain the importance of vision in our lives.

3.

Explain the importance of smell and taste in our lives.

4.

With the aid of a diagram, describe the olfactory receptor cells, an olfactory glomerulus, the olfactory pathway 5. List the regions of the brain that receive information on odors transmitted through this pathway.

6. Describe the physiology of olfaction. See notes,

B. Physiology of Olfaction

7. Describe the anatomy of taste receptors and the taste pathway.

8. Describe the physiology of taste.

9. Describe what you know about the genetics of taste.

10. Explain the relationship between smell, taste and flavor.

11. Draw a diagram of a sagittal section of the eye, name the parts, and summarize the function of each part.

12. Describe the accessory structures associated with the eye (eyelids, extraocular muscles etc.).

13. Draw a simple outline diagram of the neural retina, showing the arrangement of the five neural cells found in it. What are their names?

14. To your diagram, add the cells of the non-neural retina.

15. Name the glial cell found in the retina.

16. Draw a rod and a cone, showing outer segment, inner segment, mitochondria, nucleus and synapse.

17. Explain how the cornea and lens function to focus an image of the external scene on the retina.

18. Explain why everything looks blurred if you open your eyes under water, and why you can see perfectly well when you have a face mask (relate this to Snell’s Law of refraction – see supplement on optics and the eye at the end of these objectives ).

19. With diagrams explain the process of accommodation.

20. List five examples of refractive problems with the eye, and how they may be corrected.

21. Describe the

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