📖 Introduction to Human Body Systems

The human body is made up of several amazing systems that work together to keep us alive and healthy. The circulatory system includes your heart and blood vessels that pump blood throughout your body. The respiratory system helps you breathe by bringing oxygen into your lungs and removing carbon dioxide. Your digestive system breaks down food so your body can use it for energy and growth. The nervous system, which includes your brain and nerves, controls everything your body does and helps you think and feel. The muscular system allows you to move, while the skeletal system provides structure and protects your organs. Finally, the immune system fights off germs and diseases to keep you healthy.

🧠 Part 1: Multiple Choice Questions

✏️ Part 2: Short Answer Questions

Organ 1: _________________ System: _________________

Organ 2: _________________ System: _________________

Organ 3: _________________ System: _________________