The sensory organ is very important for the human being because sensory organ detects all type of changes takes place in the environment and send the appropriate signal to the central nervous system and after that signals are sent to the different parts/center of the brain. Due to these signals, the human body responds to the changes that take place around them. The eye is one of the most important sense organs of the human body because due to this sense organ humans see their world, know another person and do all the activities with theor sharp vision. So, take this quiz and know more about the sensory organ for the vision eye.
1. The adult human eyeball is nearly a _______ structure.
A. Spherical
B. Oval
C. Circle
D. None of these
2. The external layer of the eyeball is composed of _____.
A. Choroid
B. Blood vessels
C. Dense connective tissue
D. Ciliary body
3. Which one of the following is the visible colored portion of the eye?
A. Retina
B. Iris
C. Lens
D. Ciliary body
4. Which of the following has the function of daylight vision and color vision?
A. Fovea
B. Rods
C. Blind spot
D. Cones
5. ______ vision is the function of the rods.
A. Photopic
B. Scotopic
C. Both of these
D. None of these
6. Which of the following contains the derivative of vitamin A?
A. Blind spot
B. Optic nerves
C. Cornea
D. Rhodopsin
7. Photoreceptor cells are not present in that region and hence it is called _____.
A. Blind spot
B. Fovea
C. Vitreous chamber
D. Aqueous chamber
8. Whare only the cones are densely packed?
A. Optic nerve
B. Blind spot
C. Vitreous chamber
D. Fovea
9. Where is the visual acuity is the greatest?
A. Fovea
B. Blind spot
C. Optic nerve
D. All of these
10. The space between the cornea and the lens is called ____.
A. Vitreous chamber
B. Aqueous chamber
C. Both of these
D. None of these
11. What is the vitreous chamber?
A. Space between the lens and the retina
B. Space between cornea and lens
C. Space between blind spot and optic nerve
D. None of these
12. Photopigment in the human eye is composed of _____.
A. Aldehyde of vitamin A
B. Carbohydrates
C. Proteins
D. All of these
13. Which of the following regulates the diameter of the pupil?
A. Muscle fibres of retina
B. Muscle fibres of cornea
C. Muscle fibres of ciliary body
D. Muscle fibres of iris
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