StudyGuides20B

StudyGuides20B - Biology 20B Study Guide Dr. McCray Enjoy!...

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Biology 20B Study Guide Dr. McCray 1 Enjoy! You may find these study guide questions helpful for testing your understanding of lectures and laboratory activities. The questions pretty much follow the same order of appearance as the course content in both lecture and laboratory. For example, after the first lecture you probably will be able to answer the first few questions. I strongly recommend that you do NOT wait until the day before your exam to start looking at these. Successful students in previous semesters made these study questions part of their weekly routine, something to go over as a study group after each individual tried to answer the questions on their own. The study guide is pretty much useless for people who tend to “cram” right before exams. It also makes no sense to get “the answers” from someone else and attempt to memorize them. The real advantage of any study guide is gained during the process of looking up the answers for your self. Chapter 13 – The Senses 1. Name the different types of skin receptors. Which ones are “encapsulated?” Describe the function attributed to each type. 2. Compare the density of touch receptors in the skin of the manus, cervical, lumbar, orbital and oral regions. 3. Define sensory adaptation and provide an example of an everyday situation that illustrates this phenomenon. List the types of receptors known to adapt and those known to NOT adapt. What may be a good reason for those that do not adapt? Of those that do adapt, which type(s) adapt quickly and which type(s) adapt slowly? 4. List components found in lacrimal secretion and describe their functions. What structure makes the so-called “eye-boogers,” “eye-sand,” or “crust” sometimes found in the corners of the eye? 5. Name and locate the muscle that (a) laterally rotates the eye; (b) medially rotates the eye. (c) elevates the eye; (d) depresses the eye; (e) laterally rotates the eye AND elevates the eye at once (f) laterally rotates AND depresses the eye at once. 6. Describe the production and circulation of aqueous humor in the eye. Contrast this with vitreous humor. Describe the functions of these humors. 7. Define glaucoma and treatment. Define cataracts and treatment. 8. List, locate, and describe the functions of the three eye tunics and their associated structures. 9. Label an eyeball in sagittal section. 10. Compare visual acuity expected for a person having a pigmented choroid vs. a person who is lacking pigmentation in the choroid (as in some people with albinism). 11. Define tapetum lucidum . What is its purpose and do we (humans) have this? 12. Where is the blind spot and why can’t you register an image on that spot? 13.
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This note was uploaded on 09/16/2010 for the course BIO 1A taught by Professor Mccray during the Fall '09 term at Merritt College.

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StudyGuides20B - Biology 20B Study Guide Dr. McCray Enjoy!...

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