Psychology: Chapter 2 Brain And Behavior

19 cards

Chapter Two Of Test One

Created Jan 19, 2010


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What are two different parts of the neurons and what are their primary functions?
Dendrites- Recieve signals from other neurons then send them to cell bodyCell body (aka soma)-...
What is a neuron?
Base building block of the nervous system that convey info to different parts of the NS and...
What are two more different parts of the neurons and what are their primary functions?
Axon- Info flows down axon in form of electricalAxon terminals- contains neuro transmitters...
What are glial cells and what are their functions? 
Provide neurons nourshimentHold neurons in placeIsolate brain from toxinsForm Myelin sheath
What is the myelin sheath?
Fatty insulation of nerouns around some axons that help speed conduction impulse
What roles do the resting potential, action potential and negative after potential play in...
Resting potential= The electrical charge of an inactive neuron. Messages from other neurons...
What is a synapse? 
Gap between neurons and muscles in which one in which one neuron realses a chemical that excites...
What are inhibitory and excitatory synapses? 
Excitatory synapse- When the binding of the Neuro transimitor to the receptor causes positively...
what are neurtotransmitters? and how do they affect the postsynaptic neuron?
chemical realeased by neuron that affects other neuronspostsynaptic neuron???
What endorphins and how do they affect the body?
Produced by piutary gland and hypothalanks. they are the bodies nautral opitates that are realeased...
How do drugs alter Neurotransmitters?
Agonists- Work by miciming the effects of NTAntagonists- Work by blocking the NTs
What are the major divisions of the nervous system and what are their functions?
Central nervous system-   Brain and spinal cordsPeripheral nervous system- can be...
What is the difference between the sympathetic and parasympethic nervous systems?
Sympathetic system- Responds to emergencies by activiating body resources (aka fight or flight...
What four structures make up the hindbrain and what are their functions?
Medulla- Controls heart rate, breathing, blood pressure, coughing and swallowingPons- Important...
Function of the midbrain?
Involved in some sensory reflexes and helps regulate brain arousal 
What are the subocrial structures of the foebrain? what are their functions and what happens...
Thalmus- a final switching station for sensory messages on their way to the cortex. Vison hearing...
What are the four principles of coritcal organization? 
Functioal specialization- Different areas of the cortex serve different functionsTopograhpic...
What are the four lobes of the ceberal cortex?
Frontal Lobe- working memoryPartetal lobe- Processes info about body's safe touchOccipital...
What are two specific things that can happen when different areas of the cortex are damaged?
Visual agnosias- Set of disorders where patients cant interpret visual infoProsopagnosia- Inability...

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