- Skeletal System: Provides structural support and protection for organs; works with the muscular system to enable movement; stores minerals and produces blood cells.
- Muscular System: Generates force and movement by contracting muscles; works with the skeletal system for locomotion; helps maintain posture and body temperature.
- Circulatory System: Transports oxygen, nutrients, hormones, and waste products throughout the body via blood; delivers oxygen from the respiratory system and nutrients from the digestive system to cells.
- Respiratory System: Takes in oxygen and expels carbon dioxide; supplies oxygen to the circulatory system for delivery to tissues and removes waste gases from the bloodstream.
- Nervous System: Controls and coordinates body activities by sending electrical signals; regulates functions of other systems (e.g., breathing rate, heart rate, digestion) based on internal and external stimuli.
- Digestive System: Breaks down food into nutrients that are absorbed into the bloodstream; provides energy and building materials for all body systems; works with the circulatory system to distribute nutrients.
Parent Tip: Review the logic above to help your child master the concept of systems of the human body worksheet.
