Psyc 101 Chapter 3 Bold Terms

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DefinitionTerm
structure in the forebrain through which all sensory information (except smell) must pass to get to the cerebral cortex
the right and left halves of the cerebrum
axons that carry information inward to the central nervous system from the periphery of the body
threadlike strands of DNA molecules that carry genetic information
internally produced chemicals that resemble opiates in structure and effects
contains the cell nucleus and much of the chemical machinery common to most cells
chemical substances released by the endocrine glands
a microscopic gap between the terminal button of one neuron and the cell membrane of another neuron
system made up of nerves that connect to the heart, blood vessels, smooth muscles, and glands
relatively large and deeply folded structure located adjacent to the back surface of the brainstem
the insulating material that encases some axons
system consisting of the brain and spinal cord
procedure in which the bundle of fibers that connects the cerebral hemispheres is cut to reduce the severity of epileptic seizures
DNA segments that serve as the key functional units in hereditary transmission
small knobs at the end of an azon that secrete chemicals called neurotransmitters
system consisting of glands that help control bodily functioning
the convoluted outer layer of the cerebrum
system made up of nerves that connect to voluntary skeletal muscles and to sensory receptors
segment of the brainstem that lies between the hindbrain and the forebrain; contains an area involved with integrating sensory processes
releases a great variety of hormones that fan out within the body, stimulating actions in the other endocrine glands
a process in which neurotransmitters are sponged up from the synaptic cleft by the presynaptic membrane
a limited time span in the development of an organism when it is optimal for certain capacities to emerge because the organism is especially responsive to certain experiences
axons that carry information outward from the central nervous system to the periphery of the body
a very brief shift in a neuron's electrical charge that travels along an axon
a junction where information is transmitted from one neuron to another
DefinitionTerm
cells found throughout the nervous system that provide various types of support for neurons
chemicals that transmit information from one neuron to another
a voltage change at a receptor site on a postsynaptic cell membrane
research method assessing hereditary influence by examing the resemblance between adopted children and both their biological and adoptive parents
structure found near the base of the forebrain that is involved in the regulation of basic biological needs
principle that posits that heritable characteristics that provide a survival or reproductive advantage are more likely than alternative characteristics to be passed on to subsequen
loosely connected network of structures located roughly along the border between the cerebral cortex and deeper subcortical areas
research method involving destroying a piece of the brain
the minimum length of time after an action potential during which another action potential cannot begin
long, thin fiber that transmits signals away from the soma to other neurons or to muscles or glands
a stable, negative charge when the cell is inactive (about -70 millivolts)
an inherited characteristic that increased in a population because it helped solve a problem of survival or reproduction during the time it emerged
brain structure that includes the cerebellum, the medulla, and the pons
characteristics that are influenced by more than one pair of genes
individual cells in the nervous system that receive, integrate, and transmit information
the reproductive success of an individual organism relative to the average reproductive success in the population
the major structure that connects the two cerebral hemispheres
system made up of all those nerves that lie outside the brain and spinal cord
the parts of a neuron that are specialized to receive information
research method assessing hereditary influence by examining blood relatives to see how much they resemble one another on a specific trait
a chemical that mimics that action of a neurotransmitter
reseach method assessing hereditary influence by comparing the resemblance of identical twins and fraternal twins with respect to trait
largest and most complex region of the brain, encompassing a variety of structures, including the thalamus, hypothalamus, limbic system, and cerebrum
a chemical that opposes the action of a neurotransmitter
research method involving sending a weak electric current into a brain structure to stimulate it

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Created Feb 4, 2011ReportNominate
Tags:definition, 101, bold, chapter, Chapter 3, term