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- ASSIGNMENT 1 VA3504 Question Assignment 1. List the components of an x‐ray machine and how they contribute to the formation of an image 2. Can you think of any benefits that a traditional x‐ray machine has to offer over a digital one? 3. Explain how an image is produced with digital x‐ray machine 4. Discuss the factors that affect radiographic quality? 5. Explain how mAs, kVp, mA affect the radiographic image. 6. On a radiographic image what does the black represent? What does white represent and what is represented by the grayish regions of an image? 7. How does increasing the mAs affect a radiographic image? 8. How does decreasing the mAs affect the radiographic image? 9. How does increasing the kVp affect the radiographic image? 10. How does decreasing the kVp affect the radiographic image? 11. What is the role of the collimator? 12. What is the function of the grid? 13. How does the collimator help in improving image quality 14. What is the role of the primary beam? 15. What is…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…Match the lens (condenser, high-dry, low-power, ocular, or oil immersion) to itsdescription. Choices may be used more than once. Diopter adjustments can be made to this lens.
- Title What technique error will always be present on an occlusal radiograph using size 4 film? a. Cone-cut Description What technique error will always be present on an occlusal radiograph using size 4 film? a. Cone-cut b . Elongation c. Foreshortening d . Overlapped contact areas What is the function of intensifying screens used in extraoral radiography? a. To increase the sharpness of the image b . To decrease the magnification of the image c. To help the patient remain still during the exposure d . To decrease the exposure to radiation for the patientAn unresponsive patient is wearing gas-permeable contactlenses. How would the nurse remove these lenses?a. Gently irrigate the eye with an irrigating solution fromthe inner canthus outward.b. Grasp the lens with a gentle pinching motion.c. Don sterile gloves before attempting the removalprocedure.d. Ensure that the lens is centered on the cornea beforegently manipulating the lids to release it.please help me make this procedure a flow chart III. Procedure: A. MicroscopyOperating Procedure:Place the microscope close to the edge of the table. Select a suitable stool so that when looking into the eyepiece, your back is straight and your neck is bent at the nape.1. Lower the body tube by turning the course focus knob until the 10x or 16mm objective reaches the downward stop.2. Look through the eyepiece and adjust the mirror to the position which provides the brightest and the most evenly illuminated field of vision which is the circular area seen in the eyepiece. Raise the condenser until its top lens at the same level as the stage. Place the slide on the stage and fasten it using the stage clips.3. Position the specimen area of the slide over the center of the stage aperture.4. Looking through the eyepiece, raise the coarse focus knob until the image appears. Focus as sharply as possible. Low power objective has a much greater depth of focus and is generally used for the…
- How does the numerical aperture of an objective lens affect resolution? Question options: Numerical aperture is the optical plane visible for each objective lens Numerical aperture decreases the amount of excess light on a specimen increasing the resolution and clarity Numerical aperture is the loss of light due to changes in density between the specimen and the objective lens Numerical aperture is a measure of the amount of light an objective lens can accept producing higher resolution and allowing smaller structures to be visualized with greater clarityMatch the lens (condenser, high-dry, low-power, ocular, or oil immersion) to itsdescription. Choices may be used more than once. This lens collects and focuses light from the lamp onto the specimen on the slide.Match the lens (condenser, high-dry, low-power, ocular, or oil immersion) to its description.This lens, also known as the eyepiece, often comes in pairs.