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Unit 2 Review

Author: Torquato Rose
Description:
Keywords: , , , , , , online teaching

Content:
Definitions:
0. oil gland
1. decibel
2. fluoride
3. gingivitis
4. cornea
5. orthodontia
6. optic nerve
7. sebum
8. plaque
9. hair follicle
10. ultraviolet rays
11. SPF
12. astigmatism
13. auditory nerve
14. farsighted
15. iris

Answers:
0. a mineral that can help protect teeth
1. clear covering that protects the eye
2. gum disease
3. able to see things nearby, but far away things are blurry
4. blurry vision caused by an unevenly curved cornea or lens
5. oil released by the oil (sebacious) gland
6. where light enters the eye
7. carries signals to the brain to be interpreted as sound
8. the part of the skin that contains the root of a hair
9. substance composed mostly of bacteria that builds up on teeth
10. able to see things far away, but things nearby are blurry
11. a unit used to measure the loudness of sound
12. straightening crooked teeth
13. invisible energy waves given off by the sun
14. sun protection factor
15. controls that amount of light that enters the eye
.