Eyes Anatomy, Health, Function, Facts, Worksheets & Information ... - Free Printable

Let's solve this eye anatomy labeling puzzle step by step.

Objective:

Label the parts of the human eye using the provided terms.

---

Step 1: Understand the Eye Structure

The diagram shows a cross-section of the human eye. We need to identify each labeled part based on its location and function.

---

Step 2: Identify Each Part

We’ll go from left to right, top to bottom, matching the blank labels with the correct terms.

#### Left Side (Front of the Eye):

1. Cornea – The clear, dome-shaped outer layer at the front of the eye.
2. Iris – The colored part of the eye that controls the size of the pupil.
3. Pupil – The black circular opening in the center of the iris.
4. Lens – The transparent structure behind the iris that focuses light.
5. Ciliary Body – The ring-shaped structure behind the iris that produces aqueous humor and holds the lens via suspensory ligaments.
6. Suspensory Ligament – Fibers that connect the ciliary body to the lens.
7. Aqueous Humor – The fluid between the cornea and the lens.

#### Right Side (Back of the Eye):

8. Vitreous Humor – The gel-like substance filling the space between the lens and the retina.
9. Retina – The light-sensitive layer at the back of the eye.
10. Fovea – A small depression in the retina where vision is sharpest.
11. Optic Disk – The point where the optic nerve exits the eye; also known as the "blind spot".
12. Optic Nerve – The nerve that carries visual information from the retina to the brain.
13. Central Artery – The blood vessel supplying the retina, running through the optic nerve.

#### Outer Layers:

14. Sclera – The white, tough outer layer of the eye.
15. Choroid – The middle vascular layer between the sclera and retina, rich in blood vessels.

---

Now, match the blanks:

From the diagram:

- Top Right:
- First box → Vitreous Humor
- Second box → Retina
- Third box → Fovea

- Bottom Right:
- Fourth box → Optic Disk
- Fifth box → Optic Nerve
- Sixth box → Central Artery

- Left Side (from top to bottom):
- First → Cornea
- Second → Iris
- Third → Pupil
- Fourth → Lens
- Fifth → Ciliary Body
- Sixth → Suspensory Ligament
- Seventh → Aqueous Humor

- Bottom Left (outer layer):
- Eighth → Sclera
- Ninth → Choroid

---

✔ Final Answer (Labels in order):

From left to right, top to bottom:

1. Cornea
2. Iris
3. Pupil
4. Lens
5. Ciliary Body
6. Suspensory Ligament
7. Aqueous Humor
8. Sclera
9. Choroid
10. Vitreous Humor
11. Retina
12. Fovea
13. Optic Disk
14. Optic Nerve
15. Central Artery

> Note: Some boxes may be grouped or slightly misaligned visually, but the logic above matches standard eye anatomy.

---

🧠 Summary of Key Functions:

| Structure | Function |
|---------|--------|
| Cornea | Refracts light entering the eye |
| Iris | Controls pupil size |
| Pupil | Allows light to enter |
| Lens | Focuses light onto the retina |
| Ciliary Body | Produces aqueous humor; adjusts lens shape |
| Suspensory Ligament | Holds lens in place |
| Aqueous Humor | Maintains intraocular pressure |
| Vitreous Humor | Supports the retina and maintains shape |
| Retina | Converts light into neural signals |
| Fovea | Area of sharpest vision |
| Optic Disk | Where optic nerve exits (no photoreceptors) |
| Optic Nerve | Transmits visual info to brain |
| Central Artery | Supplies blood to retina |
| Sclera | Protective outer layer |
| Choroid | Nutrient supply to retina |

---

✔ All labels correctly assigned!