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84 Cards in this Set
- Front
- Back
Cerebral cortex
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extensive, wrinkled outer layer of the forebrain; governs higher brain functions such as thinking learning and consciousness
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Cerebral cortex
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extensive, wrinkled outer layer of the forebrain; governs higher brain functions such as thinking learning and consciousness
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medial forebrain bundle
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bundle of axons, orgasam part of the brain, the rat would go back to that spot
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Medial forebrain bundle (MFB)
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bundle of axons that dump dopamean
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Electroencephalography (EEG)
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non invasive techniques one of the oldest and mos important
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EEG use
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sleep disorders, sleep apnea, sleep studies, quality of sleep, epilepsy
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how MRI works
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large magnet aligns all hydrogenines pass thin slivers of radio waves through the brain
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brain imaging techniques
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CT scans PET scans
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Phineas Gage
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sent an iron rod through his brain
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Traumatic Brain Injury
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car accidents, high contact sports, language, emotional control, decision making, attention memory
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TBI
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destroys all of them a little bit of a time not selective to one brain area
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split brain patients
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have seizures
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corpus callosum
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not a bunlde of nerons but a bundle that connects the the brains
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split brain patients
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will lie if you ask them questions
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dominant hand
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sign of the brains a symentry
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walking
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is automated which is why split brain patients can walk
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symptoms of split brain patients after about two months leave why
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because there are smaller connectors that start to connect themselves
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neurons
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once dead don't regrow they could but scar tissues prevents it
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centeral nervous system
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brain and spinal cord
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somatic half
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nerves that go to muscles that allow you to contract sensory half and motor half to this system
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Autonomic half of nervous system
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two halves sympathetic fight or flight
parasympathetic stop/rest |
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sympathetic
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creates an automatic response for fight or flight does things to make you more likely to survive
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candle light
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made eyes dilate which creates arousal
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parasympathetic
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consume process and store energy digestive system works with sex they work together
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what are brains made of
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Glia, neurons
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neurons
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individual cells in the nervous system that receive integrate and transmit information
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Glia
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cells in the nervous system that provide structural support and insulation, latin for glue, transmission from neuron to neuron, chemical balance
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Parts of a neuron
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Dendrites, soma, axon, terminal buttons, synapse
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Dendrites
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receives and integrates
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Gene
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book definition is weak small bit of DNA that creates one protien we have twenty to 35 thousand so that's close to the different types of proteens we can make
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Brain doesn't work
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unless neurons are active all the time
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neurons are active
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due to proteins
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Soma
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cell body-integrates
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Axon
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Transmits away from the soma
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Terminal Buttons
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secrete neurotransmitters
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Synapse
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junction where information is transmitted to the adjacent cell
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Glutamate
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know about it activate it
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Gaba
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know about it inhibit it
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equal librium
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atoms will equal out
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Ions
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will move until they equaled
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Proteins
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huge cluster of molecules
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basic rule of chemistry
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opposite charges attract
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EPSP
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Excitatory post synaptic potential
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-55mv or mili volts
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is thresh hold
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action potential
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is the signal that goes down the axon
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what causes EPSP
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sodium rushing in and glutamate receptor has to open up a hole the more glutamate you dump the more glutamate receptors will open holes and you'll get a larger epsp
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Gaba binds to Gaba receptor
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the gaba receptor opens a hole but not for sodium it's for chloride
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chloride
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a negative receptor
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receptors open this
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ion channel
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IPSP
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inhibitory post synaptic potential
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EPSP
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the bases of any drug you will ever consume
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sarantonan transporter
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reuses sarantonan
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neuron firing
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the bases of every though you will ever have
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voltage dated sodium channel
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another type of protein that's embedded in the axon
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vdsc
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won't open until voltage channel reaches -55 when this happens sodium rushes in
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axon potential
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a series of voltage gated sodium channels opening and closing on the axon
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Glutamate
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most prevalent excitatory NT in the brain
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GABA
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most prevalent inhibitory NT in the brain
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Acetylcholine
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Movemet
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Monoamines
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regulate many apects of everyday behavior
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Dopamine
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voluntary movement, pleasure
monoamines |
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serotonin
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sleep/wakefullness, eating, aggressive behavior, depression
monoamines |
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Norepinephrine
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depression. emotion, stress
monoamines |
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Endorphins
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endogenous morphine
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Oxytocin
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love, social bonding, trust
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why do we get an action potential when we hit -55 ml volts
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voltage gated sodium channels open
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study how the brains works
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neuro transmission
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Endocrine System
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know the ones in the brain and a few in the body
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Endocrine Glands
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controlled by the nerous system through the hypothalmus
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pituitary
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master gland releases hormones that cause other glands to release additional hormones
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pineal gland
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releases metonan and it makes you sleeply
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one more
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find on slides
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brain plasticity
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the brain is plastic it can sprout no synapses and can change
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brain tissue implants and stem cells
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how can we use stem cells
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nanotechnology and neuroscience
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small engineered devices to help release
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Heredity and Behavior
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nature and nurture not nature vs nurture
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polygenetic
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not a single gene but multiple genes
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gene
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creates a protiene
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chromosomes
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strands of DNA carrying genetic information
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Genotype does not equal
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phenotype
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phenotype
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what you physicaly and mentally are as a person
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genotype
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is your genes
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We inherit dispositions, not destinies
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Richard Rose
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Genes cannot tell us exactly what a person will be like
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laura king
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