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Neurons c
| Term | Definition |
|---|---|
| Nervous System | is physically connected network of cells, tissues, and organs that controls thoughts, movements, and simpler life processes |
| Endocrine System | collection of physically disconnected organs that helps to control growth, development, and responses in your body |
| Stimulus | Endocrine and Nervous system help respond to stimulus which is something that causes a response. Chemical, cellular, or behavioral |
| How Endocrine system works | chemical signals are carried through the bloodstream throughout the body and only cells with specific receptors can receive it |
| How the Nervous system works | Sends its signals through a network of specialized tissues |
| Difference between Endocrine system | Endocrine sends messages through the blood and only certain cells receive the chemical signals. It occurs slowly and regulates processes over long periods of time |
| Difference between Nervous | Nervous: sends electrical signals, signal sent through tissues, and responds quickly, controls immediate processes |
| 2 parts of nervous system | Central nervous system, and peripheral nervous system |
| Central nervous system | includes the brain and the spinal cord, and interprets messages from other nerves in the body and stores some for later use |
| Peripheral nervous system | network of nerves that transmit signals to your CNS and then from CNS to other organs in the body |
| Neuron | specialized cell that stores information and carries messages within the nervous system and between other body systems |
| DENDRITES | Branch like extensions of the cytoplasm and the cell membrane that receive messages from neighboring cells |
| Axon | Long extension that carries electrical messages away from the cell body and passes them to other cells |
| Sensory Neurons | detect stimuli and transmit signals to the brain and the spinal cord |
| Interneurons | receive signals from the sensory neurons and replay them within the brain and spinal cord |
| Motor Neurons | Pass messages from the nervous system to other tissues in the body |
| Neurons transmit signals in what form | Chemical and electrical |
| resting potential | the difference in charge across the membrane |
| Sodium potassium pump | uses energy to actively transport Na+ ions out of the cell and k+ ions in the cell |
| action potential | electrical impulse |
| Axon terminal is | part of the axon through which the impulse leaves the neuron, contains chemical-filled vesicles |
| threshold | amount a neuron needs to be stimulated before it produces active potential |
Created by:
ronabraham@cox.net
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