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48 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Sensory |
Carries information about the environment to receptors to the central nervous system |
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Motor |
Carries information from central nervous system to muscles and glands |
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Interneurons |
Connecting neurons that make up the brain and spinal cord |
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Neuron |
Specialized cell designed to receive and transmit electro-chemical info |
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Dendrites |
Short fibers that extend from the cell body and pick up chemicals |
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Cell body |
Contains life maintaining material for the neuron |
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Axon |
Single long fiber extending from cell body. Carries messages |
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Myelin sheath |
Fat that is found covering some axons - helps speed transmission of electrical signal. |
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Axon terminals |
Swelling at the ends of the axon that contain bundles of chemicals |
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Synapse |
Tiny gap that separates the axon terminal of spending neuron from dendrites of receiving neuron. (25 million fit in an inch) |
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Action potential |
Firing of the neuron-electrical charge travels down the axon to axon terminal |
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Characteristics of action potential All or none firing |
Neurons ethier fire at full strength or not at all |
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Neurotransmitters |
Chemicals released from the axon terminal of sending cell. Float received by dendrites |
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Agonists |
Drugs that fit close enough to act like the NT |
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Antagonists |
Drugs that bind to the receptor and block the NT from getting to it. |
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Peripheral nervous system |
All nerves outside the CSN (autonomic and somatic) |
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Autonomic |
Controls involuntary organs. Two components Sympathetic- fight or flight Parasympathetic-homeostasic system
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Somatic |
Controls voluntary movement of the skeletal muscles |
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Central nervous system |
Consist of the brain and spinal cord. Spinal cord- connects the brain to peripheral. Controls simple- reflexes |
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Left hemisphere |
Right side of body Language Logic Problem solving |
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Right hemisphere |
Left Side if body Creativity Facial recognition Spatial ability |
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Corpus callosum |
Thick band of neurons connecting the two hemispheres. |
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Medulla |
Controls heartbeat and breathing |
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Pons |
Controls arousal |
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Thalamus |
Sits on top of brain stem |
Almost all sensory travels though |
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Cerebellum |
Sits in lower back portion of the brain. Controls coordination balance and movement |
Alcohol= poor coordination |
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Limbic system |
Forms a border around upper brainstem. Controls emotion hunger and sex |
Nended things |
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Amygadala |
Fear and aggression |
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Hippocampus |
Learning and memory |
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Hypothalamus |
Controls temperature eating thirst and sex. |
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Cerebral cortex |
Outside layer of brain. Movement,language,reasoning,perception. |
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Occipital lobe |
Vision |
Veiw |
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Parietal lobe |
Sensations of touch and body position |
Back rubs |
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Temporal lobe |
Hearing,memory,space and time perception Personality |
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Broad area |
Frontal lobe Difficult to form words |
On the tip of tounge |
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Wrenches area |
Word salad Dont make sense |
Bird pasta jacket |
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Voluntary movement |
Motor cortex at the back of the frontal lobe. |
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Consciousness |
Awareness of ourselves and our environment |
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Circadian rhythms |
Daily rhythm behavioral and physiological cycle. |
Clock |
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Electroencephalogram |
Device that measures brain waves (60-90 mins) |
Device |
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Stage 1 sleep (NonREM) |
Brain and body slow down |
Free falling |
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Stage 2 sleep (NonREM) |
Sleep spindles |
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Stage 3 sleep |
Delta wave 20% |
Difficult to awake sleep walk,talk |
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Stage 4 as sleep |
Deep sleep 50% delta waves |
Veey difficult to awake sleep walk, talk |
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REM sleep |
Rapid eye movement Brain is active Dreams occur Sleep gets longer |
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REM rebound |
Disruption of REM sleep leads to more REM sleep |
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Growth |
Pituitary gland releases growth hormones in stage 4 |
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Frued |
Wish fulfillment Manifest-remembering Latent-meaning of dream |
Sex freak |
