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Brain
n/a
61
Psychology
12th Grade
02/01/2011

Additional Psychology Flashcards

 


 

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Term
Nervous System
Definition
process info from inside the body and external environment.
Term
Neurons
Definition
nerve cells in nervous system that respond and send signals. Receive, move, & process info.
Term
Central Nervous System
Definition
Brain and spianl cord. Info is sent here from PNS to be moved up the spinal cord to the brain to be processed. "CEO"
Term
Peripheral Nervous System
Definition
Nerves not in brain and spinal cord. Collects info to be sent to the CNS.
Term
Somatic
Definition
Sensory nerves and motor nerves. Subdivision of PNS.
Term
Autonomic
Definition
Automatic processeses, signals make full circut to process sensory & motor info. Subdivision of PNS.
Term
Cell body
Definition
has a nucleus theat carries DNA; determines how the cell functions
Term
Dendrites
Definition
Detect signals. Recieve signals from axons, carry signals to cell body to be interpreted
Term
Axon
Definition
Carry signals away from cell body to axon terminals
Term
Axon Terminals
Definition
areas @ the end of an axon where neurotransmitters are released
Term
Synapse
Definition
Gap between neurons where neurotransmitters jump from one neuron to another
Term
Neurotransmitters
Definition
chemicals transfer info from one neuron to another by jumping across synapse, fits into own receptor
Term
Vesicles
Definition
Bubbles where neurotransmitters fit into the recieving dendrite of the next neuron
Term
Receptor
Definition
Where neurotransmitters fit into the receiving dendrite of the next neuron
Term
Myelin Sheath
Definition
Insulating protein layer that surrounds the axon to speed up communication and contain electric pulses
Term
Neural Communication
Definition
Neurons either fire or don't, can only communicate with close neurons, must make full circut
Term
Lou Gerig's
Definition
nuerons waste away = muscles waste away; inability to control mvmt. and loss of muscle control
Term
Autism
Definition
Brain dev. disorder; abnormalities in social interaction, restricted interesy & repetitive behavior
Term
Mirror Neurons
Definition
Probs empathizing w/ and imitating others
Term
Multiple Sclerosis
Definition
Immune system slowly destorys Myelin Sheaths. Slows commmunication, progressive & fatal; age 20-40.
Term
Acetylcholine
Definition
Movement. Controls the expansion & contraction of muscles. (Alzheimer's, inability to make new memories, paralysis)
Term
Norepinephrine
Definition
Arousal (excitatory), mood regulation, increases heart rate, contracts bloood vessels, adrenaline. (Depression, can cause burn out)
Term
Serotonin
Definition
Affects sleep, mood regualtion, appetite, agression, sexualtiy, impulse. Body makes it from cetain foods, sun, exercise. (Depreddion, SAD,SID)
Term
Dopamine
Definition
Motivation, reward, emotional functioning. (Parkison's, Schizophrenia, addictions)
Term
Pakison's
Definition
shortage of dopamine. Leads to progressive loss of motor function.
Term
Gultamate
Definition
Memory, Learning. Necessary for normal dev. & functioning. (Too much can kills nuerons, loss after stroke, brain tumor, seizures)
Term
Endorphines
Definition
Releive pain; produce feelings of well-being & pleasure. Similar to narcotic drugs.
Term
Cerebrum
Definition
Largest part; highest level of thinking. Emotions, memories, planning, senses. Div. into 2 hemispheres & 8 lobes.
Term
Corpus Callosum
Definition
band of fibers in the mid of the brain - connects the 2 hem.
Term
4 lobes
Definition
Frontal, Parietal, Occipital, Temporal
Term
Frontal
Definition
memory, intelligence, personality, creativity, emotions
Term
Parietal
Definition
Touch, movement
Term
Occipital
Definition
Vision
Term
Temporal
Definition
Hearing
Term
Phineas
Definition
railrad spikes went hrough his brain, case study, allowed us to use diff parts of the brain and how it affects our behavior, verbally and physically agressive after accident.
Term
Case Study
Definition
Unethical to reproduce
Term
Lateralized
Definition
2 hemispheres are specialized for processing certain kinds of info. Each hemi controls the opposite 1/2 of the body.
Term
Dominance/Preference
Definition
Favor 1 side over the other, we constantly use both (Laterilization & Intergration).
Term
Left hemi
Definition
What you should do. (Logic, Analytic Thought, Language, Science, Algebra, Time, Detail-Oriented).
Term
Right Hemi
Definition
What you want to do. (Intuition, Creativity, Art and Music, Nonverbal, Impulsive, Geometry)
Term
Hindbrain
Definition
Bottom. Most primitive part; vitals. Incoming siganls reach here first.
Term
Medulla
Definition
Keeps vitals regular (breathing, swallowing, circulation)
Term
Reticular Formation
Definition
"net" work of fibers (neurons); arousal & attention.
Term
Cerebellum
Definition
Basic motor activities; coordination (posture, speech patterns, timing).
Term
Midbrain
Definition
Center. Integrates mvmt. w/ sensory info & relays it up to the rest of the brain. Pathway to cerebal hemis; audio & visual reflexes.
Term
Forebrain
Definition
Top. Most complex aspects.
Term
Thalamus
Definition
Relay station; messages to & from parts of the brain; filters stimuli
Term
Hypothalumus
Definition
"Pleasure center"; regulates hunger, thirst, sex drive,& controls rage.
Term
Hippocampus
Definition
Regulate emotion & form LT memories
Term
Amygdala
Definition
Primitive emotions
Term
Prefrontal Cortex
Definition
Pay attn., orginization, decision making, judgement, prediction; mature around 25
Term
Split Brain
Definition
Seperate 2 hem. of cerebrum by cutting the corpus callosum. Creates 2 independently functioning cerebrums. (Lessens severity/frequency of epileptic seizures)
Term
Brain Aneurysm
Definition
Bulging artery that can rupture. Causes are genetics, smoking, blood pressure, gender (more females), ethnicity.
Term
Strokes
Definition
Blockage of a blood vessel kills brain tissue. Impaired abilities depend on where it happens in the brain. 3rd leading COD in U.S.
Term
Brain Plasticity
Definition
Ability of the brain to adapt itself after trauma, alteration, or disease. Strenghthen nueral connections at synapses and est. new ones. Most brain power at birth and childhood b/c of more neurons.
Term
Pruning
Definition
Brain cuts some neural connections & kills some neurons. Neurons w/o connection cant' be found. Connections that remain are better than before. Ones cut (Genetics & experiences).
Term
Pruning Periods
Definition
Before birth & late teens
Term
Endocrine System
Definition
NS's partner in controlling & coordinating the body's function. Organ in endocrine (glands) release hormones (chemical messagers) into the bloodstream. (Growth, physical dev., adrenaline, moods, energy, metabolism)
Term
Immune System
Definition
Sensory & surveillance system. Detects and destroys unwated cells and foreign bodies.
Term
Underresponsive immune sustem
Definition
Bacteria & malignant cell run rampant (deaths).
Term
Overresponsive immune system
Definition
Attack and kill normal cells (neurons too).
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