Which of the following is designed to be lowered into a drop of immersion oil placed directly above the prepared specimen under examination?
A. Dry objective
B. Stage
C. Substage
D. Oil-immersion objective
E. 10x objective
D. Oil-immersion objective
The oil-immersion objective is lowered into a drop of immersion oil placed directly on the slide above the prepared specimen to eliminate the air space between the microscope slide and the objective, where some of the light scatters beyond the objective.
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Reticular fibers are:
a. strong inelastic fibers that provide structure. b. flexible fibers that add elasticity to the matrix. c. spiderweb-like fibers that provide support and stability. d. None of the above
Otorhinolaryngologic services are those services associated with the head, or more specifically, the ear, nose, and throat (ENT)
Indicate whether this statement is true or false.
What is the lowest horizontal member of the window frame?
A. Sill B Sash C. Side jamb D. Head jamb
Heart failure patients being treated in the dental office often require:
A. longer appointment times. B. nitrous oxide sedation. C. upright positioning. D. premedication with antibiotics.