Optic Nerves

Q.

What is the function of optic nerve in human eye?

Q. Signals generated by the light- sensitive cells in the human eye are sent to the brain via ___.

1. Retina
2. Pupil
3. All of these
4. Optic nerves

Q.

Where does the formation of the image of an object take place in the human eye?

Q.

How does our brain interpret the image that is formed on the retina?

1. Wherever light falls that area becomes hot and thus by measuring the diffrence in hotness image is formed.

2. Light sensitive cells on retina get activated wherever light falls and generate electrical signals which are read by the brain.

3. Image is formed on the retina . we do not need the brain to interpret the image.

4. None of these

Q.

What is the function of the optic nerve?

Q. In myopic eye, the images of far away objects are formed _______ the retina.​

1. behind
2. in front of
3. on
4. can't say

Q. The brain interprets the light entering the eye. This information is passed to the brain from the eye through .

1. lens
2. iris
3. pupil
4. optical nerves

Q.

What is transduction in the eye?

Q. Which among the following is called as the second cranial nerve?

1. Optic nerve
2. Cornea
3. Iris
4. Choroid

Q. Small opening in the iris which controls the amount of light entering the eye is known as _____.

1. cornea
2. pupil​
3. lens
4. retina​

Q.

Give the biological terms for the following:

(a) Structure that carries visual stimuli from retina to the brain.

Q. Small opening in the iris which controls the amount of light entering the eye is known as _____.

1. cornea
2. pupil​
3. lens
4. retina​

Q.

How does our brain interpret the image that is formed on the retina?

1. Wherever light falls that area becomes hot and thus by measuring the difference in hotness image is formed.

2. Light sensitive cells on retina get activated wherever light falls and generate electrical signals which are sent to the brain via the optic nerves.

3. Image is formed on the retina. we do not need the brain to interpret the image.

4. Cells are present in vitreous humour which help brain to perceive the image formed on retina.

Q. What is the function of optic nerve?

1. Keeps vitreous humour clear
2. Transmits electrical signal to brain
3. Forms image
4. Reduces the size of the pupil