As the iris contracts and relaxes, an opening at its center, the ____, grows larger or smaller.
A. pupil
B. cornea
C. lens
D. retina
E. limbus
A. pupil
The size of the pupil regulates the amount of light that enters the eye.
You might also like to view...
As a medical assisting professional, your attitude ____.
A. should be true to your own feelings B. allows you to learn from criticism C. can be different with coworkers than with patients D. does not matter as long as you are positive E. should become aggressive when necessary
For patients who have bleeding disorders, the medical assistant ________.
A. may need to apply a pressure dressing after venipuncture B. must ensure that the patient takes aspirin before venipuncture C. should ask the physician to draw the blood sample D. should give the patient a cold compress to constrict the blood vessels
The two cerebral hemispheres are connected by the?
A) ?cerebellum. B) ?midbrain. C) ?medulla oblongata. D) ?corpus callosum.
What is the most important advantage of zero-based budgeting over other budgeting philosophies?
A. Upper management has more control of the budget B. All managers are forced to look for alternatives when preparing their budgets. C. Unit or department managers must participate. D. It takes the least amount of effort to prepare.