Skip to main content

Posts

AIIMS MDS ENTRANCE EXAM PAST QUESTIONS NOVEMBER 2009

# Infarction of anterior inferior cerebellar artery may cause damage to: A. Vestibular nuclei B. Pyramidal tract C. Corticospinal tract D. Spinal nucleus of trigeminal nerve # Chief cells are located in gastric gland in the region? A. Fundus B. Isthmus C. Neck D. Equally spread # GALT(Gut associated lymphoid tissue) is primarily located in: A. Submucosa B. Muscularis mucosa C. Serosa D. Lamina propria

# Which factor results in parallax "unsharpness"?

 # Which  factor results in parallax "unsharpness"? a) Quantum mottle. b) Size and number of silver halide grains. c) Object, film, or x-ray source movement. d) Image magnification on double-emulsion film. The correct answer is D. Image magnification on double emulsion film. Quantum mottle is caused by a fluctuation in the number of photons absorbed by the fast film-intensifying screen combination. Object, film, or x-ray source movement can all cause image "unsharpness" that appears blurry. The size and number of silver halide grains contribute to image receptor blurring. Parallax "unsharpness" occurs because the double-emulsion film records a slight magnification of the image on the side of the film away from the x-ray source. Click here for more MCQs