Label the parts of a compound microscope using the provided terms.

Let's solve this labeling task step by step. We are given a diagram of a compound light microscope with 14 numbered parts to label, and a list of possible terms on the right side.

Step 1: Understand the structure of a compound microscope

A compound microscope has several key components:
- Eyepiece (ocular lens) – where you look through.
- Objective lenses – located near the specimen; usually include low, medium, and high power.
- Stage – holds the slide.
- Stage clips – hold the slide in place.
- Revolving nosepiece (turret) – holds the objective lenses and allows switching between them.
- Iris diaphragm – controls the amount of light passing through the specimen.
- Condenser – focuses light onto the specimen (not always labeled separately).
- Lamp – light source.
- Arm – supports the head and connects to the base.
- Base – supports the entire microscope.
- Coarse and fine adjustment knobs – focus the image.
- Barrel – connects the eyepiece to the objective lenses.

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Step 2: Match each number to the correct part

Let’s go through each number:

#### 1. Eye Piece
- This is the top part you look into. Clearly labeled as #1.

#### 2. Revolving nose
- The rotating part that holds the objective lenses. It's just below the eyepiece.

#### 3. High power objective lens
- One of the lenses on the revolving nosepiece. Usually the one closest to the stage.

#### 4. Medium power Objective Lens
- Another objective lens, typically in the middle.

#### 5. Low power objective Lens
- The lens furthest from the stage (usually the shortest).

> Note: The order of lenses may vary, but generally, the lowest power lens is the one farthest from the stage. So if #3 is high power, #4 medium, then #5 should be low power.

Wait — let's check the positioning carefully.

Actually, looking at the diagram:
- The revolving nose (#2) holds multiple lenses.
- The lens closest to the stage is likely the high power, because it's closer to the specimen.
- The one furthest is low power.

So:
- #3 → High power objective lens
- #4 → Medium power Objective Lens
- #5 → Low power objective Lens

Yes, that makes sense.

#### 6. Stage clips
- These are small metal clips on the stage that hold the slide in place.

#### 7. Stage
- The flat platform where the slide is placed.

#### 8. Iris Diaphragm
- Located under the stage, it controls light intensity. Often a circular disc with a lever or knob.

#### 9. Barrell
- Also called the "body tube" or "barrel". It connects the eyepiece to the objective lenses.

#### 10. Arm
- The curved part connecting the head to the base.

#### 11. Lamp
- The light source at the bottom, beneath the stage.

#### 12. Coarse adjustment knob
- Larger knob used for initial focusing.

#### 13. Fine adjustment knob
- Smaller knob used for precise focusing.

#### 14. Base
- The flat, stable bottom part that supports the entire microscope.

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Final Answer:

| Number | Part |
|--------|------|
| 1 | Eye Piece |
| 2 | Revolving nose |
| 3 | High power objective lens |
| 4 | Medium power Objective Lens |
| 5 | Low power objective Lens |
| 6 | Stage clips |
| 7 | Stage |
| 8 | Iris Diaphragm |
| 9 | Barrell |
| 10 | Arm |
| 11 | Lamp |
| 12 | Coarse adjustment knob |
| 13 | Fine adjustment knob |
| 14 | Base |

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Explanation:

This labeling exercise tests knowledge of microscope anatomy. Each part plays a specific role:
- Eyepiece and objectives magnify the image.
- Stage and clips hold the specimen.
- Adjustment knobs help focus.
- Light control (lamp, iris diaphragm) ensures proper illumination.
- Base and arm provide structural support.

Correct identification helps in using the microscope effectively.

✔ All labels match correctly based on standard microscope design.