B6

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What is a stimulus?
A stimulus is a change in an organism's environment. Animals respond to stimuli in order to keep themselves in suitable conditions for survival.
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What type of neuron carries impulses from the central nervous system to an effector such as a muscle?
MOTOR neurons carries impulses from the CNS to effectors.
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What is the name of the gap between two neurons?
Synapse
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What is the name of the long fibre attached to the cell body in a motor neuron?
An axon
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What is a reflex action?
A reflex action is a fast, automatic, involuntary response to a stimulus.
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What is the name given to the type of action when the final response has no direct connection to the stimulus?
Conditioned reflex action
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What develop in the human brain allows learning from experience e.g language?
Neuron pathways
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Which part of the brain is most concerned with intelligence and memory?
The cerebral cortex of the brain
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Name the technique that produces images of cross sections of the brain
MRI scans
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What is memory?
Memory is the ability to store and retrieve information. It can be divided into short term memory (stores info for a limited amount of time) or long term memory (stores an unlimited amount of info)
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How do drugs like Prozac and Ecstasy affect the nervous system?
They affect the passage of an impulse across a synapse.
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What is learned behaviour?
Learned behaviour is responses to a stimuli which an organism develops because of experience. It can change behaviour if the environment changes. It aids survival.
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What methods can you use to help map the brain?
Brain damage, electrical stimulation and MRI Brain scans
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Explain the brain damage method to help map the brain
Study patient with brain damage to learn which parts of the brain are responsible for different jobs.
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Explain the electrical stimulation method to help map the brain
Probe with a weak electrical current to touch different parts of the brain and asking the patient what they experience.
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Explain the MRI Brain scans method to help map the brain
MRI patients perform a task while being scanned allowing scientists to identify which areas of the brain are active in each task.
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Other cards in this set

Card 2

Front

What type of neuron carries impulses from the central nervous system to an effector such as a muscle?

Back

MOTOR neurons carries impulses from the CNS to effectors.

Card 3

Front

What is the name of the gap between two neurons?

Back

Preview of the front of card 3

Card 4

Front

What is the name of the long fibre attached to the cell body in a motor neuron?

Back

Preview of the front of card 4

Card 5

Front

What is a reflex action?

Back

Preview of the front of card 5
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