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Q 1/22
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a branch of psychology concerned with the links between biology and behavior
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biological psychology
Q 2/22
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a nerve cell; the basic building block of the nervous system
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neuron
22 questions
Q.
a branch of psychology concerned with the links between biology and behavior
1
30 sec
Q.
a nerve cell; the basic building block of the nervous system
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the bushy, branching extensions of a neuron that receive messages and conduct impulses toward the cell body
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the extension of a neuron, ending in branching terminal fibers, through which messages pass to other neurons or to muscles or glands
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a layer of fatty tissue segmentally encasing the fibers of many neurons; enables vastly greater transmission speed of neural impulses as the impulse hops from one node to the next
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a neural impulse; a brief electrical charge that travels down an axon. the action potential is generated by the movement of positively charged atoms in and out of channels in the axon's membrane
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the level of stimulation required to trigger a neural impulse
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the junction between the axon tip of the sending neuron and the dendrite or cell body of the receiving neuron. The tiny gap at this junction is called the synaptic gap or cleft.
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chemical messengers that traverse the synaptic gaps between neurons. When released by the sending neuron, neurotransmitters travel across the synapse and bind to receptor sites on the receiving neuron, thereby influencing whether that neuron will generate a neural impulse.
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"morphine within"--natural, opiatelike neurotransmitters linked to pain control and to pleasure.
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the body's speedy, electrochemical communication system, consisting of all the nerve cells of the peripheral and central nervous systems
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the body system composed of the brain and the spinal cord
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the sensory and motor neurons that connect the central nervous system to the rest of the body.
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neural "cables" containing many axons. These bundled axons, which are part of the peripheral nervous system, connect the central nervous system with muscles, glands, and sense organs
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neurons that carry incoming information from the sense receptors to the central nervous system.
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neurons that carry outgoing information from the central nervous system to the muscles and glands
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Central nervous system neurons that internally communicate and intervene between the sensory inputs and motor outputs
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the division of the peripheral nervous system that controls the body's skeletal muscles. Also called the skeletal nervous system
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The part of the peripheral nervous system that controls the glands and the muscles of the internal organs (such as the heart). Its sympathetic division arouses; its parasympathetic division calms.
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the division of the autonomic nervous system that arouses the body, mobilizing its energy in stressful situations
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the division of the autonomic nervous system that calms the body, conserving its energy
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Q.
interconnected neural cells. With experience, networks can learn, as feedback strengthens or inhibits connections that produce certain results. Computer simulations of neural networks show analogous learning.
