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Related Flashcards
Cards In This Set
| Front | Back |
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Your brain is the size of a
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Large grapefruit
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Brain feels like
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Tofu
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Biopsychology
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Field of psychology that analyses how the brain and neurotransmiters influence our behaviours, thoughts and feelings.
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Neuron
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A specialized cell that confucts impulses through the nervous system and contains 3 major parts.
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3 major parts of a neuron
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Cell body, dendrites, and axon
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A neuron has 3 main functions
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Relays messages, conveys signals, and carries signals
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How many neurons are in the brain
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100 billion
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Cell body/ soma
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The part of the neuron that contains the nucleus and carries out the metabolic functions.
- recieves messages - sends nerve impulses |
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Dendrites
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Branch like extension of a neuron
- recieves signals from other neurons |
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Axon
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The slender tail like extension of the neuron
- transmitts signals to the dendrites or cell body of other neurons or to muscles, glands, or other parts of the body |
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Axon terminals
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Sends messages to other neurons through chemicals called neurotransmitters
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Glial cells
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Cells that make the brain more efficent by:
- holding neurons together - removing waste products such as dead neurons - making myelin coating for axons |
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Synaptic clefts
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Tiny fluid filled gaps that seperate axon terminals between sending and recieving neurons
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Synapse
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The junction where the axon of a sending neuron communicates with recieving neuron acress the synaptic cleft
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Neurons communicate via
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Neruonal impulse (electric charge)
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