The transparent lens in the human eye is held in its place by

Options

A. smooth muscles attached to the iris
B. ligaments attached to the iris
C. ligaments attached to the ciliary body
D. smooth muscles attached to the ciliary body

Explanation

**Step-by-Step Solution:**

1. **Understanding the Structure of the Eye:**
- The human eye consists of three main layers: the sclera (outermost), choroid (middle), and retina (innermost).
- The sclera provides structure and protection, while the choroid supplies blood to the eye and contains the ciliary body.

2. **Identifying the Ciliary Body:**
- The ciliary body is a thickened part of the choroid located at the front of the eye.
- It plays a crucial role in holding the lens in place and controlling its shape for focusing.

3. **Role of the Lens:**
- The lens is a transparent, crystalline structure that focuses light onto the retina.
- It must be held securely in position to function correctly.

4. **Connection of the Lens to the Ciliary Body:**
- The lens is held in place by ligaments known as zonules or zonular fibers.
- These ligaments connect the lens to the ciliary body, allowing the lens to change shape for focusing (accommodation).

5. **Evaluating the Options:**
- The question asks what holds the lens in place. The options include ligaments, smooth muscle, and possibly other structures.
- Since ligaments are connective tissues that provide support and connect different structures, they are the correct answer.

6. **Conclusion:**
- Therefore, the transparent lens in the human eye is held in its place by ligaments attached to the ciliary body.

**Final Answer:**
The transparent lens in the human eye is held in its place by ligaments attached to the ciliary body.

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