Window of knowledge

Window of Knowledge Quiz

1. Which of the following is the primary function of the cornea?

a) Focusing light onto the retina
b) Changing the shape of the lens
c) Regulating the amount of light entering the eye
d) Producing tears

2. What is the function of the iris?

a) To refract light
b) To control the size of the pupil
c) To produce tears
d) To convert light into nerve impulses

3. Which part of the eye contains the photoreceptor cells (rods and cones)?

a) Cornea
b) Lens
c) Retina
d) Iris

4. What is the condition called when the eye cannot focus on distant objects clearly?

a) Hypermetropia
b) Myopia
c) Astigmatism
d) Cataract

5. Which of the following is used to correct myopia?

a) Convex lens
b) Concave lens
c) Cylindrical lens
d) Bifocal lens

6. What is the function of the Eustachian tube?

a) To transmit sound waves to the inner ear
b) To maintain equal air pressure on both sides of the eardrum
c) To produce earwax
d) To amplify sound waves

7. Which part of the ear contains the hair cells that convert sound waves into nerve impulses?

a) Outer ear
b) Middle ear
c) Inner ear
d) Auditory nerve

8. What is the function of the olfactory receptors?

a) To detect taste
b) To detect smell
c) To maintain balance
d) To regulate body temperature

9. Which of the following is NOT a taste sensation?

a) Sweet
b) Sour
c) Spicy
d) Bitter

10. What is the function of the skin?

a) Protection
b) Temperature regulation
c) Sensation
d) All of the above