- Skeletal System: Provides structure and support for the body; main organ involved is the bones.
- Respiratory System: Facilitates breathing and gas exchange; main organ involved is the lungs.
- Muscular System: Enables movement and maintains posture; main organ involved is the muscles.
- Nervous System: Controls and coordinates body activities; main organ involved is the brain.
- Endocrine System: Regulates bodily functions through hormones; main organ involved is the glands (e.g., pituitary, thyroid).
- Circulatory System: Transports blood, nutrients, and oxygen throughout the body; main organ involved is the heart.
- Digestive System: Breaks down food and absorbs nutrients; main organ involved is the stomach and intestines.
- Urinary System: Removes waste and regulates fluid balance; main organ involved is the kidneys.
- Reproductive System: Produces offspring; main organs involved are the ovaries/testes.
- Integumentary System: Protects the body from external threats; main organ involved is the skin.
Parent Tip: Review the logic above to help your child master the concept of human body worksheet.
