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Nervous/Endocrine
Nervous and Endocrine System Vocab
Term | Definition |
---|---|
Nervous System | Made up of 3 parts - the brain, spinal cord, and all of the nerves in the body |
Spinal Cord | Extension off of the brain that runs down your back |
Impulse | Electrochemical message that travels along a nerve |
Stimulus | Any internal or external change that causes a response by your body |
Response | Your body's reaction to a stimulus |
Brain | Control center of the nervous system |
Axon | The long part of the nerve cell |
Cell body | Part of a neuron that contains the nucleus |
Dendrites | The finger like parts of the nerve cell that messages pass through |
Neuron | Nerve cell |
Nerve | A bundle of one of more neurons that carry messages throughout the body |
Regulation | The way your body controls its internal environment (another word for homeostasis |
Endocrine System | A system of glands to produce hormones to regulate the body's activities - sends messages SLOWLY through the bloodstream |
Glands | Organs that are part of the endocrine system, which make and secrete (give off) hormones |
Circulatory System | System made up of the heart, blood vessels & blood. It carries hormones to their target tissues (also carries many other chemicals & special cells) |