A curvature defect of the lens or cornea in which some parts of an image are in focus on
the retina and other parts are blurred and vision is distorted is called
A) presbyopia. B) myopia. C) astigmatism. D) hyperopia.
C
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A county fair held a water-drinking contest where people competed to see who could drink the most water in a set amount of time. During the competition, a man drank three gallons of water in under an hour and a half. Unfortunately, this killed him several hours after he won the competition. The excessive water intake caused him to develop water intoxication, in which the electrolyte imbalance called ________ occurred.
Fill in the blank(s) with the appropriate word(s).
Which of the following is separated from surrounding tissues by a fibrous connective tissue capsule?
A) palatine tonsils B) appendix C) lymph nodes D) Peyer patches E) pharyngeal tonsils
Why does inhaling deeply and slowly through the nose help to identify an odor?
A. More air containing the odor is brought into contact with the olfactory epithelium. B. Impulses originate slowly in the olfactory epithelium. C. The tissue needs more time in contact with the odor. D. Threshold for odor detection is high. E. Receptors in the olfactory epithelium are highly specific.
Which blood vessel drains deoxygenated blood from the portion of the body below the chest?
A. Subclavian vein B. Superior vena cava C. Inferior vena cavae D. Aorta