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Term | Definition |
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circulatory system | The system that transports blood and other fluids throughout the body. |
heart | the muscular organ of an animal that pumps blood throughout the body |
ventricle | a chamber in an animal's heart that pumps blood out to the body |
brain | the main control center in an animal body; part of the central nervous system |
nervous system | the system of the body that carries information to all parts of the body: The nervous system relies on nerve cells to move electrical signals to the body from the brain, and from the body to the brain and/or spinal cord. |
spinal cord | a bundle of nerves that runs along the back of a vertebrate within the spinal column |
cerebellum | the part of the brain that controls balance, coordination, and unconscious muscle activities |
cerebrum | The part of the brain that controls conscious thoughts, senses, language and memories. |
genetic trait | A genetically determined characteristic or condition. |
gene | The basic unit of heredity in a living organism; a segment of DNA or RNA |