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AP chapter 2

Phrenology highlighted the presumed function of ... ?

Specific Brain Regions

The person mosst likely to suggest that the shape of a person's skull indicates the estent to which that individual is argumentative and aggressive would be a :


Dr. Wolski does research on the potential relationship between neurotransmitter deficiencies and mood states. Which psycological specialty does Dr. Wolski's research best represent?

Biological Psychology

A biological psychologist would be most interested in the relationship between :

body chemistry and violent behavior

Dendrites are branching extensions of


the function of dendrites is to :

receive incoming signals from other neurons

An axon is :

the extension of a neuron that carries meassages away from the cell body

The longest part of a motor neuron is likely to be the :


In transmitting sensory information to the brain, an electrical signal within a signal neuron travels from the :

Dendrites to the cell body to the axon

The speed at which a neural impulse travels is increased when the axon is encased by a(n) :

Myelin Sheath

Neural impulses may travel as rapidly as

200 miles per hour

A brief electrical charge that travels down the axon of a neuron s called the :

Action potential

The depolarization of a neural membrane creates a(n)

Action Potential

An action potential is generated by the movement of


The resting potential of an axon results from the fact that an axon membrane is :

selectivley permeable

resting potential is to action potential as ____ is to ____

polorization is to depolorization

With regard to the process of the neural transmission, a refractory period refers to a time interval in which :

Positively charged atoms are pumped back outside a neural membrane.

The minimum level of stimulation required to trigger a neural impulse is called the :


Increasing excitatory signals above the threshold for neural activation will not affect the intensity of an action potential. This indicates that a neuron's reaction is :

an all-or-none response

A slap on the back is more painful than a pat on the back because the slap triggers :

More frequent neural impulses

Sir Charles Sherringtion observed that impulses took more time to travel a neural pathway than he might have anticipated. His observation provided evidence for the existence of :

Synaptic Gaps

A synapse is a(n)

a junction between a sending neuron and a recieving neuron

The chemical messengers released into the spatial junctions between neurons are called:


Neurotransmitter is to ion as ____ is to ___

Molecule is to atom

Neurotransmitters are released from vesicles located in knoblike terminals on the:


Reuptake refers to the:

Reabosrotion of excess neurotransmitter molecules by a sending neuron

Research on neurotransmitters indicates that :

Neurotransmitters can inhibit neural impulse transmission

Alzheimer's disease is most closely linked to the loss of neurons that produce :


Epinephrine is to hormone as acetylcholine is to


schizophrenia is most closley linked with excess receptor activity for the neurotransmitter :


An undersupply of serotonin is most closely linked to:


Gaba is to glutamate as ___ is to ___

inhibitory neurotransmitter is to excitatory nuerotransmitter

Migraine headaches are most closely linked with an ____ of ____

oversupply of glutamate

Transferring messages froma motor neuron to a leg muscle requires the neurotransmitter known as :


Botulin poisoning from improperly canned food causes paralysis by blocking the release of :


Endorphines are :


Opiate drugs occupy the smae receptor sites as :


Jose has just played a long, bruising football game but feels little fatigue or discomfort. His lack of pain is most likely caused by the release of :


Hormone is to neurotransmitter as epinephrine is to:


Th body's natural production of endorphins is likely to be ___ by heroin use and ___ by acupuncture


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