Question

1. what is a white, plate - like plaque on the gingiva called?

chyme
leukoplakia
pellagra
pyorrhea

1. the term proctoscope means:

visual examination of the sigmoid colon
visual examination of the rectum
instrument used for visual examination of the rectum
instrument used for visual examination of the stomach

Explanation:

• For question 25, leukoplakia is characterized by white, plate - like plaques on mucous membranes including the gingiva. Chyme is partially digested food in the stomach, pellagra is a vitamin deficiency disease, and pyorrhea is a gum disease not related to such plaques.
• For question 26, a proctoscope is an instrument used for the visual examination of the rectum. Visual examination of the sigmoid colon is sigmoidoscopy, and visual examination of the stomach is gastroscopy.

Answer:

1. B. leukoplakia
2. C. instrument used for visual examination of the rectum