9. Mechanical stage 10. Mechanical stage adjustment knobs 11. Objective lens 12. Ocular 13. On/off switch 1. Arm 2. Base 3. Coarse adjustment Condenser 4. 5. Dimmer 14. Rotating nosepiece 15. Stage 6. Fine adjustment 7. Iris diaphragm 8. Light source -12 -13 2. ©Hayden-McNeil, LLC Figure 1. The Compound Microscope.

9. Mechanical stage 10. Mechanical stage adjustment knobs 11. Objective lens 12. Ocular 13. On/off switch 1. Arm 2. Base 3. Coarse adjustment Condenser 4. 5. Dimmer 14. Rotating nosepiece 15. Stage 6. Fine adjustment 7. Iris diaphragm 8. Light source -12 -13 2. ©Hayden-McNeil, LLC Figure 1. The Compound Microscope.

An Illustrated Guide To Vet Med Term

4th Edition

ISBN:9781305465763

Author:ROMICH

Publisher:ROMICH

Chapter14: Seeing And Hearing

Section: Chapter Questions

Problem 9MC

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What part of the microscope is used to make small-scale adjustments to the height of the stage? Group of answer choices 1. fine focus 2. iris diaphragm 3. eye pieces 4. coarse focus 5. slide holder adjustment
Key Term Matching 1. stage A. the eyepiece 2. stage adjustment knob B. concentrates the light into specimen 3. fine adjustment knob C. opens and closes to regulate the light 4. course adjustment knob D. moves stage forward, back, left and right 5. nosepiece E. platform for the slide 6. light intensity control F. rheostat 7. condenser G. rotates to change objective lenses _8. slide holder H. used for precision focusing 9. ocular lens I. used to move the stage up or down 10. iris diaphragm J. hold the slide in place on the stage
In this image a stage micrometer and an ocular micrometer are aligned so that the 10 o.u. line aligns with the 100um line. The 200um line of the stage micrometer overlaps with the 90 o.u. line of the ocular micrometer. What is the calibration for this lens? eyepiece graticule 40 50 60 70 s0 9 100 stage micrometer 0.8 um/ou O 8 um/ou O 1.25 um/ou 0.25 um/ou
Contrast for a specimen may be adjusted by _____. Question options: Adjusting the iris diaphragm Lowering the stage Turning off the substage condenser light source Changing the objective lens
Match each item with the correct compound light microscope part below. objective lenses fine adjustment knob diaphragm 1. choice D 2. choice K 3. choice G
blackboardcdn.com/5bfc08ba3fldc/14683296?X-Blackboard-Expiration=16245468000008X-Blackboard- 19 / 47 100% 1.4. Functions of the light mlcroscope parts Complete the following table by writing the function(s) of each of the parts indicated. Structure Function Diaphragm / iris Stage opehing Lamp Objective lenses Eye piece Coarse and find adjustment knobs Stage Stage rack prt sc delete home backspace lock enter pause t shift
2. What is the function of a revolvillg 3. Which connects the eyepiece to the revolving nosepiece with the objectives? 4. Describe the function of the mirror. 5 What are parts of the microscope are being connected by the inclination joint? What I Have Learned Directions: Fill in the blank to make the sentences complete. Choose the correct words listed in the box. is a curved glass that bends light that passes through it. regulates the amount of light on the specimen. 1, 2. for viewing. 3. The glass slide is placed on the 4. The bottom of the microscope, used for support is 5. The 6. 7. To transfer a microscope, use the holds two or more objective lenses and can be rotated to easily change power. is the lens at the top of the microscope that you look through. to carry the microscope. 8. is a small knob on the side of the microscope used to fine-tune the focus of the specimen. 9. The arm and base of themicroscope are being connected by the 10. The is used to enlarge the specimen. stage…
Ocular Lens: 10x Ocular Lens: 10x Objective Lens: 4x Objective Lens: 100x А B
While looking into your compound light microscope you are unable to properly resolve the specimen. What might be the cause? Question options: You have a dirty objective lens. Any of the choices The iris diaphragm has not been properly adjusted. The coverslip has a fingerprint on it.
Answer these questions by watching the YouTube videos and reviewing the Powerpoints from Lab #4. 1. What is Refraction of light? 2. What is the difference between the Ocular lens and the Objective lens? 3. What is the purpose of the Revolving Nosepiece? 4. What is the difference between the Course Adjustment Knob and the Fine Adjustment Knob? 5. How do you calculate Total Magnification? 6. What is Resolution in terms of Microscopy? 7. What is the purpose of Oil Immersion? 8. What is the Diffraction Barrier and why does it exist? 9. What is the purpose of using stains and fluorescent dyes in microscopy? 10. What is the advantage of using an Electron Microscope? 11. What Objective lens should you always start with? 12. What is the purpose of the Iris Diaphragm on the Condenser? 13. How do you know your Objective lens has been adjusted properly? 14. Why should you not use Kimwipes…
3. Please number these steps, in the order they should be completed when using a microscope. Remove specimen, lower stage, wrap cord, and return covered microscope to numbered shelf. Move to other objective lenses to increase magnification. Rotate lowest-magnification objective lens into position (probably 4x or 10x). Clean all lenses with lens paper. Place specimen on stage. Adjust chair to a comfortable height. Use coarse focus knob to adjust stage until an image is visible. Be careful to use only the fine focus knob with the longest objective lenses.
Preparing a wet mount of the letter "e”. 1. Obtain a prepared ‘e’ slide. 2. Focus the slide first with the scanning objective, then click to lower power and focus again. 3. Finally, focus the slide under high power. Remember, at high power, you should ONLY use the fine adjustment knob. 4. Draw the ‘e’ exactly as it appears in your viewing field for each magnification. The LPO, HPO, and Oil Immersion