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Definition
| bumps in the skull represent mental abilities, Franz Gull |
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Definition
| Correctly placed the mind in the brain |
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Definition
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Term
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Definition
1. Sensory
2. Motor
3. Interneurons |
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Definition
| sends info from sensory receptors into spinal cord and brain |
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Definition
| carry messages from spinal cord/brain to operate muscles |
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Definition
| carry messages from one neuron to another; exist only in spinal cord/brain |
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Definition
| receive messages from other neurons |
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Definition
| life support center or neuron |
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Term
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Definition
| covered by myelin sheath to insulate and speed up transmission through neurons |
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Definition
| transmit messages to other neurons |
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Definition
| dendrite; cell body; axon; axon terminal |
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Term
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Definition
| an electrical charge that travels down an axon and is generate by the movement of positively charges atoms in and out of channels in the axon's membrane |
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Definition
| occurs when POSITIVE ions enter the neuron, making it MORE prone to firing an action potential |
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Term
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Definition
| occurs when NEGATIVE ions enter the neuron, making it LESS prone to firing an action potential |
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Term
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Definition
| when the depolarizing current minus the hyperpolarizing current exceeds a minimum intensity (threshold), the neuron fires an action potential |
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Term
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Definition
| neurons either fire or they don't |
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Term
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Definition
| do not vary in strength or intensity when travelling through axon |
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Term
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Definition
| neurons possess electrical properties even when they are not receiving or transmitting messages |
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Definition
| the junction (gap) between terminal buttons of one neuron and dendrite of the next one |
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Term
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Definition
| neurotransmitters in the synapse are reabsorbed into the sending neuron; regulates levels of neurotransmitters in synapse |
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Definition
| enable muscle action, learning and memory; lack of = Alzheimer's |
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Term
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Definition
| influences movement, learning, attention, and emotion; excess= schizophrenia; lack of= tremors and Parkinson's |
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Term
| GABA (gamma-amino-butyric acid) |
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Definition
| inhibitory neurotransmitter (regulates anxiety); lack of= anxiety disorders, insomnia, epilepsy, schizophrenia, addiction |
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Term
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Definition
| affects mood, hunger, sleep, arousal and stimulates vomiting; lack of= depression |
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Definition
| affects mood, hunger, sleep, arousal and stimulates vomiting; lack of= depression |
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Definition
| involved in pain (natural pain killer) and exercise; "runner's high" |
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Term
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Definition
| the way neurotransmitters bind |
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Term
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Definition
| mimic neurotransmitters, similar in structure; nicotine= ACh; morphine= endorphins |
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Term
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Definition
| occupies receptor site to block neurotransmitter action but does not stimulate receptor |
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Definition
| decision making; inhibition |
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Definition
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Definition
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| Linguistic- reading, writing, speaking, math, comprehension, language |
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Definition
| Nonverbal- emotional expression, artistic ability, visual/spacial information |
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Term
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Definition
| tissue connecting the two hemispheres |
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