Integumentary system interactive activity - Free Printable

Let's solve this step-by-step based on the diagram and labels provided. This worksheet is about the integumentary system, which includes the skin, hair, nails, and associated structures.

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🔹 Section 1: Integumentary System – Labeling Body Parts

On the left side, there’s a human figure with three blank boxes pointing to different body parts:

- The top box points to the head → likely refers to scalp or skin of the head.
- The middle box points to the arm → skin of the arm.
- The bottom box points to the legs → skin of the legs.

But since all these are covered by skin, the correct label for each is simply:

> ✔ SKIN

So, fill in:
- Top: SKIN
- Middle: SKIN
- Bottom: SKIN

> 💡 Reason: The integumentary system primarily consists of the skin, which covers the entire body.

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🔹 Section 2: Functions of the Integumentary System

There are 8 functions listed in a grid:

```
PROTECTS OUR INTERNAL BODY
ABSORB NUTRIENTS
CONTROL HORMONES
PROTECT US FROM THE SUN
SENSORY ORGAN
EXCHANGE GASES
PRODUCE BLOOD CELLS
REGULATES TEMPERATURE
```

Now, we must determine which of these are actual functions of the integumentary system.

Let’s evaluate each:

| Function | Is it true? | Explanation |
|--------|------------|-----------|
| Protects our internal body | ✔ Yes | Skin acts as a physical barrier against pathogens and injury. |
| Absorb nutrients | ✘ No | Not a primary function; absorption happens in the digestive system. |
| Control hormones | ✘ No | Hormone control is mainly endocrine system. |
| Protect us from the sun | ✔ Yes | Melanin in skin protects from UV radiation. |
| Sensory organ | ✔ Yes | Skin has nerve endings for touch, pain, temperature. |
| Exchange gases | ✘ No | That’s lungs (respiratory system). |
| Produce blood cells | ✘ No | Hematopoiesis occurs in bone marrow. |
| Regulates temperature | ✔ Yes | Sweat glands and blood vessels help regulate body temp. |

✔ So, the correct functions of the integumentary system are:
- Protects our internal body
- Protect us from the sun
- Sensory organ
- Regulates temperature

> 📌 These four should be selected or marked as correct if the task is to identify valid functions.

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🔹 Section 3: Hair Structure Diagram

On the top right, there’s a cross-section of skin with hair and labeled parts. We have to match the labels:

Given terms:
- Sebaceous gland
- Sweat gland
- Hair
- Hair follicle
- Skin

And blank boxes pointing to:

1. Top arrow → Points to sebaceous gland (yellow structure near hair)
2. Middle arrow → Points to hair follicle (the tube-like structure housing the hair)
3. Right arrow → Points to sweat gland (coiled duct below skin surface)
4. Bottom arrow → Points to hair (the visible part above skin)
5. Left arrow → Points to skin (the outer layer)

So fill in:

- Top: SEBACEOUS GLAND
- Middle: HAIR FOLLICLE
- Right: SWEAT GLAND
- Bottom: HAIR
- Left: SKIN

> ✔ All correctly matched.

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🔹 Section 4: Skin Layers

Diagram shows three layers of skin with pink lines pointing to them.

Below are the options:
- DERMIS
- EPIDERMIS
- FAT TISSUE

From top to bottom:
1. Top layer → EPIDERMIS (outermost layer of skin)
2. Middle layer → DERMIS (contains blood vessels, nerves, hair follicles)
3. Bottom layer → FAT TISSUE (also called hypodermis or subcutaneous tissue)

So fill in:
- Top: EPIDERMIS
- Middle: DERMIS
- Bottom: FAT TISSUE

> ✔ Correct order from top to bottom.

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🔹 Section 5: Nail Structure

On the bottom right, a fingernail with colored dots:

- Green dot → LUNULA (the white half-moon at the base)
- Pink dot → NAIL EDGE (tip of the nail)
- Orange dot → CUTICLE (skin overlapping the nail base)
- Blue dot → NAIL BODY (main part of the nail)

Matching:
- Green → LUNULA
- Pink → NAIL EDGE
- Orange → CUTICLE
- Blue → NAIL BODY

So:
- Green: LUNULA
- Pink: NAIL EDGE
- Orange: CUTICLE
- Blue: NAIL BODY

> ✔ All correct.

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✔ Final Answers Summary:

#### 1. Human Figure Labels
- Head: SKIN
- Arm: SKIN
- Legs: SKIN

#### 2. Functions of Integumentary System (True ones)
- ✔️ Protects our internal body
- ✔️ Protect us from the sun
- ✔️ Sensory organ
- ✔️ Regulates temperature

*(The others are not functions of the skin)*

#### 3. Hair Diagram Labels
- Top: SEBACEOUS GLAND
- Middle: HAIR FOLLICLE
- Right: SWEAT GLAND
- Bottom: HAIR
- Left: SKIN

#### 4. Skin Layers
- Top: EPIDERMIS
- Middle: DERMIS
- Bottom: FAT TISSUE

#### 5. Nail Parts
- Green: LUNULA
- Pink: NAIL EDGE
- Orange: CUTICLE
- Blue: NAIL BODY

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This completes the labeling and understanding of the integumentary system! Let me know if you want a printable version or need help turning this into a worksheet answer key.