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Definition
| the study of the physical and chemical changes involved in the behavior and mental processes |
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| A network of billions of cells that detects what is going on inside and outside the body and guides appropriate responses |
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| Specialized cells of the nervous system that send and receive messages |
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| Nervous system cells that hold neurons together and help them communicate with each other |
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| Fibers that carrie messages away from the cell body |
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| Fibers that receive signals from axons or other neurons |
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| The electrochemical impulse or message that is sent down an axon and stimulates release of a neurotransmitter |
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| The short recovery time after a cell firing in which it cannot fire again |
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| The chemical that transfers a message across the synapses |
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| The tiny gap between the axon of one neuron and the dendrites of another |
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| neurons that operate together to perform complex functions |
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| The spinal cord and the brain |
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| Peripheral Nervous system |
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Definition
| The part of the nervous system that sends messages to and from the central nervous system |
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Definition
| insulates the axon and speeds up a message |
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| A subsystem of the Central Nervous System that transmits information from the senses to the CNS and carries signals from the SNS to the muscles that move the skeleton |
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| The neurons that provide the brain with information about the environment |
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Definition
| The neurons that influence muscles and other organs to respond to the environment in some way |
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Definition
| A small region between the hindbrain and forebrain that, among other things, helps produce smooth movements |
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Definition
| The part of the brain responsible for the most complex actions of behavior and mental life |
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Definition
| A forebrain structure that relays messages from most sense organs to higher brain areas |
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Definition
| A forebrain structure that regulates hunger, thirst, and sexdreives, and has many connections to and from the autonomic nervouse system and other parts of the brain |
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| a forebrain structure that links information from various systems and plays a role in emotions |
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| a forebrain structure associated with the formation of new memories |
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Definition
| the outer surface of the forebrain |
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Definition
| a bundle of fibers that connects the left and right cerebral hemispheres |
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Definition
| the part of the cerebral cortex located in the parietal, occipital, and temporal lobes that receives stimulus information from the skin, eyes, and ears, respectively |
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Definition
| The part of the cerebral cortex that contrls voluntary movement |
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Definition
| The parts of the cerebral cortex that integrate sensory and motor information and perform complex cognitive tasks |
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Definition
| A peroperty of the central nervous system that has the ablility to strengthen neural connections at synapse as well as to establish new connections |
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| cells that form organs called glands and that communicate with each other by secreting hormones |
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| organs that secrete hormones into the bloodstream |
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Definition
| chemicals secreted by glands into the bloodstream, allowing stimulation of cells that are not directly connected |
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| physical reactions triggered by the sympathetic nervous system that prepare the body to fight or to run from a threatening situation |
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Definition
| the subsystem of the peripheral nervous system that carries messages between the central nervous system and the heart, lungs, and other organs and glands in the body |
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| sympathetic nervous system |
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Definition
| The subsystem of the automomic system that readies the body for vigorous activity |
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| parasympathetic nervous system |
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Definition
| The subsystem of the autonomic nervous system that typically influences activity related to the preotection, nourishment, and growth of the body |
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Definition
| Clusters of nerve cell bodies in the central nervous system |
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Definition
| bundles of the axons that travel together |
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Definition
| The part of the central nervous system that receives information from the senses, passes these signals to the brain, and sends messages from the brain to the body |
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Definition
| Simple, involuntary, unlearned behaviors directed by the spinal cord without instructions from the brain |
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| Multiple electrodes are passed to the outside of the head |
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| Positrons and phontons are emissions from radioactive substances |
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| Exposes the brain to a magnetic field and measures radio frequency waves |
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| Temporarily disrupts elecrical activity of a small region of brain by exposing it to an intense magnetic field |
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| provides images of changes in bloodflow |
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| The portion of the brain that lies just inside the skull and is a coninuation of the spinal cord |
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| The area of the hindbrain that controls vital autonomic functions such as heart rate, blood pressure, and breathing |
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Definition
| A collection of cells and fibers in the hindbrain and midbrain that are involved in arousal and attention |
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Definition
| a small nucleus in the reticular formation that is involved in direction attention |
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Definition
| The part of the hindbrain that controls finely coordinated movements |
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