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- Why is it necessary to use the fine adjustment knob with higher magnification?If you have an eyepiece magnification of 10x and an objective magnification of 4x, what is the total magnification? If you have an eyepiece magnification of 10x and an objective magnification of 10x, what is the total magnification?What did you notice about the Scalp Bald Human photomicrographs shown at (a) 40x vs (b) 100x TM? Why do you think your instructor is asking you to look at it at two different total magnifications?
- Do the calibration factor computed varies according to different magnification (objective lenses being used)? Explain.What is the relationship between the working distance of an objective lens and its magnification power?What did you notice about the Human Palmar Skin photomicrographs shown at (a) 400x vs (b) 100x TM? Why do you think your instructor is asking you to look at it at two different total magnifications? What did you notice about the Scalp Bald Human photomicrographs shown at (a) 40x vs (b) 100x TM? Why do you think your instructor is asking you to look at it at two different total magnifications? What shows up well on the Human Palmar Skin photomicrograph but not the Scalp Bald Human? What whos up well on the Scalp Bald Human photomicrograph? How is the histological structure of the sweat gland completely and totally different from that of the sebaceous gland? Comment on the epithelium type, the arrangement of the cells, and the locations of the glands. What type of epithelium lines the visceral serosa? What type of connective tissue is deep to the epithelium of the visceral serosa? What type of connective tissue is part of the parietal serosa? What are the names of the 3 types of covering…
- What is the total magnification of 4x objective lens and diameter of field of view in micrometers?Which lens requires the use of cedarwood oil? Why is it important to use oil when focusing under this lens?Use the iris diaphragm to attain the best illumination of the letter “e” on the scanning (4x) objective. Open and close the iris diaphragm and notice the changes in contrast of the letter “e”. How did the appearance of the letter “e” change under the various levels of illumination? 1 Repeat the above procedure on the high-power (40x) objective. When increasing magnification, what happens to the light available? Why?
- What is the significance of using oil with the immersion lens and why can't oil be used with any other lens?Explain why an image must be centered in the field of view when using low power before moving to a high power magnification.The pupil of a person's eye changes from a diameter of 3.5 mm to 1.5 mm as the illumination is increased. By what factor does the minimum angle of resolution change?
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