Digestive System
body system the breaks down food and absorbs nutrients. Includes: mouth, esophagus, stomach, small and large intestines.
Immune System
the body's system of defense against disease.
Circulatory System
The system that delivers oxygen and nutrients and removes carbon dioxide and wastes from the body by the blood. Includes the heart and blood vessels.
Respiratory System
system responsible for taking in oxygen and releasing carbon dioxide using the lungs. Includes the trachea, bronchi, lungs and diaphram.
Skeletal System
Supports and protects the body. Made up of bones.
Muscular System
Includes the muscle tissues, and gives support, structure, and movement throughout the body.
Nervous System
The system that detects sensations and controls body functions.
Excretory System
The system that removes wastes from the body.
Reproductive System
The system that allows the species to reproduce (produce offspring).
Levels of Organization
Cells, tissues, organs, organ system and organism.