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प्रश्न
State the Location of:
Lacrimal gland
Where is the following located?
Lacrimal gland
उत्तर
Lacrimal glands are located at the upper sideward portion of the orbit.
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संबंधित प्रश्न
List the parts of the human eye that control the amount of light entering into it. Explain how they perform this function.
What kind of lens is present in the human eye?
Name the part of the retina which is insensitive to light.
What changes the shape of lens in the eye?
What changes take place in the shape of eye-lens:
when the eye is focused on a distant object?
Describe and explain, how a normal eye can see objects lying at various distances clearly.
Suggest how your irises help to protect the retinas of your eyes from damage by bright light.
An object is moved closer to an eye. What changes must take place in the eye in order to keep the image in sharp focus?
A man driving a car can read a distant road sign clearly but finds difficulty in reading the odometer on the dashboard of the car. Which of the following statement is correct about this man?
(a) The near point of his eyes has receded away.
(b) The near point of his eyes has come closer to him.
(c) The far point of his eyes has receded away.
(d) The far point of his eyes has come closer to him.
Fill in the following blank with suitable word:
Having two eyes enables us to judge.................more accurately.
State the function of each of the following parts of the human eye:
(i) Cornea
(ii) Iris
(iii) Pupil
(iv) Retina
Millions of people of the developing countries are suffering from corneal blindness. This disease can be cured by replacing the defective cornea with the cornea of a donated eye. Your school has organised a campaign in the school and its neighbourhood in order to create awareness about this fact and motivate people to donate their eyes after death. How can you along with your classmates contribute in this noble cause? State the objectives of organising such campaigns in schools.
Choose the correct answer :
The rods and cones of a vertebrate retina function is to _________
Differentiate between:
Retina and Choroid.
Give Technical Term:
The adjustment of the eye in order to obtain a clear vision of objects at different distances
Assertion: Blind spot is a small area of the retina which is insensitive to light where the optic nerve leaves the eye.
Reason: There are no rods or cones present at the junction of the optic nerve and retina in the eye.
Explain the structure and functioning of Human eye. How are we able to see nearby as well as distant objects?
Which part of the eye gets affected if someone is suffering from cataract? How is it treated?
Match the following
| 1. | Conjunctiva | a. | Coloured part of eye |
| 2. | Cornea | b. | Photosensitive layer |
| 3. | Iris | c. | Refraction |
| 4. | Retina | d. | Protection |
Explain the role of the part of human eye responsible for power of accommodation of human eye.
Name the following:
The circular opening enclosed by iris.
