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RV Myers Psychology for AP - Unit 3A

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Created by:

Rvredevo  on July 31, 2011

Subjects:

ap psychology

Classes:

AP Pyschology, AP Psychology, AP Psychology, P4 - A.P. Psychology, AP Psychology for Mr. Hart., Psych, psych (see more)

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RV Myers Psychology for AP - Unit 3A

absolute refractory period
The minimum length of time after an action potential during which another action potential cannot begin.
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28 terms

Terms

Definitions

absolute refractory period The minimum length of time after an action potential during which another action potential cannot begin.
action potential A brief change in a neuron's electrical charge.
agonist A chemical that mimics the action of a neurotransmitter.
antagonist A chemical that opposes the action of a neurotransmitter.
autonomic nervous system (ANS) The system of nerves that connect to the heart, blood vessels, smooth muscles, and glands.
axon A long, thin fiber that transmits signals away from the neuron cell body to other neurons, or to muscles or glands.
central nervous system (CNS) The brain and the spinal cord.
biological psychology Branch of psychology concerned with the links between biology and behavior
dendrites Branchlike parts of a neuron that are specialized to receive information.
efferent nerve fibers Axons that carry information outward from the central nervous system to the periphery of the body.
endocrine system A group of glands that secrete chemicals into the bloodstream that help control bodily functioning.
hormones The chemical substances released by the endocrine glands.
nerves Bundles of neuron fibers (axons) that are routed together in the peripheral nervous system.
neurons Individual cells in the nervous system that receive, integrate, and transmit information.
neurotransmitters Chemicals that transmit information from one neuron to another.
parasympathetic division The branch of the autonomic nervous system that generally conserves bodily resources.
peripheral nervous system All those nerves that lie outside the brain and spinal cord.
pituitary gland The "master gland" of the endocrine system; it releases a great variety of hormones that fan out through the body, stimulating actions in the other endocrine glands.
resting potential The stable, negative charge of a neuron when it is inactive.
reuptake A process in which neurotransmitters are sponged up from the synaptic cleft by the presynaptic membrane.
somatic nervous system The system of nerves that connect to voluntary skeletal muscles and to sensory receptors.
sympathetic division The branch of the autonomic nervous system that mobilizes the body's resources for emergencies.
synapse A junction where information is transmitted from one neuron to the next.
sensory neurons Carry incoming information from the sensory receptors to the brain and spinal cord
motor neurons Carry outgoing information from the brain and spinal cord to the muscles and glands
interneurons Neurons within the brain and spinal cord that communicate internally and intervene between the sensory inputs and motor outputs
myelin sheath Layer of fatty tissue segmentally encasing the fibers of many neurons, enables vastly greater transmission speed of neural impulses - linked with multiple sclerosis
adrenal glands Pair of endocrine glands that sit just above the kidneys and secrete hormones (epinephrine and norepinephrine) that help arouse the body in times of stress.