🦴 Part 1: Functions and Structure

1. Which of the following is NOT a function of the skeletal system?

Supporting the body

Protecting organs

Producing blood cells

Digesting food

2. How many bones are there in an adult human skeleton?

186

206

226

306

3. Which part of the bone produces red blood cells?

Compact bone

Spongy bone

Bone marrow

Periosteum

4. Select ALL the major bones found in the human body:

Femur

Tibia

Humerus

Radius

Skull

📝 Part 2: Knowledge Application

5. Explain why calcium is important for bone health and name two foods that are good sources of calcium.

6. Fill in the blanks about bone structure:

The hard outer layer of bone is called _____________ bone. Inside this layer is _____________ bone, which has a honeycomb-like structure. The hollow centre of long bones contains _____________ which produces blood cells.

7. Compare and contrast the bones of a baby versus an adult. What changes occur as we grow?

🎨 Part 3: Diagram and Analysis

8. In the space below, draw and label a diagram of a long bone (such as the femur). Include at least 4 labels showing different parts of the bone structure.

9. Research task: Choose one bone disorder or disease (such as osteoporosis, fractures, or rickets) and write a short paragraph explaining what it is and how it affects the skeletal system.