Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Chapter 3 Definition
CHS Psychology class Jack- Chapter 3 Definitions
| Question | Answer |
|---|---|
| Cell Body | The main section of neuron that contains the nucleus. |
| Nucleus | Contains the genetic information that determines how the cell will function. |
| Dendrites | Fibers that receive signals from other neurons. And carry those signals to the cell body. |
| Axon | Fibers that send signals to where communication occurs with other neurons. |
| Myelin | Fatty substance that wraps around axons and increases the speed of action potentials |
| Synapse | The tiny gap between neurons across which the neurons communicate. |
| Receptor | Sites on the surface of cells that allow only one type of neurotransmitter to fit into them, triggering a chemical response that may lead to an action potential. |
| "All or None" | The idea that if a neuron responds at all it must respond completely. |
| Reflexes | automatic, involuntary reactionswhen sigals do not pass through the brain. |
| Afferent Neurons | convey information from tissue and organs to the brain. |
| Efferent Neurons | Transmit information from the brain to the muscles. |
| Neurons | Fundamental unit of the nervous system, nerve cells. |
| Neurotransmitters | Chemicals in synapse that transmit information between neurons. |
| Acetycholine | Neurotransmitter that activates muscles. |
| Dopamine | Neurotransmitter associated with pleasure system, voluntary movements, emotion. |
| Norepinehrine | Neurotransmitter associated with stress, fight or flight response. |
| Serotonin | Neurotransmitter inhibits anger, aggression, arousal, and sleep. |
Created by:
felix1585
Popular Psychology sets