Certainly! Let's fill in the details of the eye parts that correspond to each function listed in the table.
1. is a screen where image is formed:
- This part is called the Retina. The retina is the layer at the back of the eyeball where light is focused to form images. It contains light-sensitive cells that capture visual information and send it to the brain.
2. focus light rays on the retina:
- This function is performed by the Lens. The lens is a transparent structure in the eye that helps to focus light rays precisely on the retina for clear vision.
3. controls the amount of light entering the eye:
- This part is known as the Iris. The iris is the colored part of the eye that regulates the size of the pupil and thereby controls the amount of light that can enter the eye.
4. controls the thickness of the lens:
- This function is carried out by the Ciliary muscles. These muscles adjust the thickness of the lens to focus on objects at different distances (a process known as accommodation).
5. allows light to enter the eye:
- Light enters the eye through the Pupil. The pupil is the opening in the center of the iris that allows light to enter and reach the lens and the retina.
6. transmit impulses to the brain:
- This role is performed by the Optic nerve. The optic nerve carries visual information in the form of nerve impulses from the retina to the brain, where it is interpreted as images.
Here is the completed table:
[tex]\[
\begin{tabular}{|l|l|}
\hline \multicolumn{1}{|c|}{ Function } & \part \\
\hline is a screen where image is formed & \text{Retina} \\
\hline focus light rays on the retina & \text{Lens} \\
\hline controls the amount of light entering the eye & \text{Iris} \\
\hline controls the thickness of the lens & \text{Ciliary muscles} \\
\hline allows light to enter the eye & \text{Pupil} \\
\hline transmit impulses to the brain & \text{Optic nerve} \\
\hline
\end{tabular}
\][/tex]
