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True or False Quiz
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1
The eyes contain about 20 percent of all the receptors in the human body.
A)True
B)False
2
The ciliary muscles are used for focusing the eyes.
A)True
B)False
3
Most people can perceive sounds of 20dB.
A)True
B)False
4
The unit of refracting power needed in a lens is a diopter.
A)True
B)False
5
Sensory organs are also known as sensory cells.
A)True
B)False
6
The posterior section of the eye is the sclera.
A)True
B)False
7
The inner ear contains the osseus labyrinth.
A)True
B)False
8
The area of sharpest vision is called the fovea centralis.
A)True
B)False
9
The outer layer of the eye is covered by the eyelid.
A)True
B)False
10
The tympanic membrane is also known as the eardrum.
A)True
B)False
11
The lacrimal glands secrete tears.
A)True
B)False
12
Tinnitus is bleeding in the ear.
A)True
B)False
13
Deviation of one eye inward is esotropia.
A)True
B)False





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