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Unit 2 Review

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

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

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