Retina of mammalian eye is composed of

Options

A. cones only
B. rods only
C. rods and cones
D. rods , cones and neuroglia cells

Answer

**Step-by-Step Solution:**

1. **Understanding the Structure of the Eye**: The mammalian eye is a complex organ that consists of multiple layers. It is important to know the different layers of the eye to understand the composition of the retina.

2. **Identifying the Layers**: The eye has three main layers:
- **Sclera**: The outermost layer, which provides protection and structure.
- **Choroid**: The middle layer, which contains blood vessels and provides nourishment to the eye.
- **Retina**: The innermost layer, which is crucial for vision.

3. **Focusing on the Retina**: The retina is responsible for converting light into neural signals. It contains several types of cells that play different roles in the process of vision.

4. **Types of Cells in the Retina**: The retina is composed of three main types of neural cells:
- **Photoreceptor Cells**: These are specialized cells that detect light. There are two types of photoreceptors:
- **Rods**: Responsible for vision in low light (twilight vision).
- **Cones**: Responsible for color vision and function best in bright light (daylight vision).
- **Bipolar Cells**: These cells transmit signals from photoreceptors to ganglion cells.
- **Ganglion Cells**: These cells receive signals from bipolar cells and send them to the brain via the optic nerve.

5. **Conclusion**: The retina of the mammalian eye is composed of both rods and cones, along with other neural cells (bipolar and ganglion cells). Therefore, the correct answer to the question is "rods and cones".

**Final Answer**: The retina of the mammalian eye is composed of rods and cones.

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