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28 Cards in this Set

  • Front
  • Back
drug abuse
use of any drug in a way that most doctors would not approve
axon
long fiber that carries impulses away from the cell body of a neuron
central nervous system
the brain and the spinal cord
action potential
reversal of charges across the cell membrane of a neuron
brain stem
structure that connects the brain and spinal cord
cerebellum
regin of the brain that coordinates body movement
addiction
uncontrollable craving for more of a drug
cell body dendrite
largest part of a typical neuron
cerebrospinal fluid
flurid in the space between the meninges that acts as a shock absorber that protects the central nervous system
cerebrum
area of the brain responsible for all voluntary activies of the body
drug
any substance, other than food, that causes a change in the substance or function of the body
fetal alcohol syndrome
group of birth defects caused by the effects of alcohol on a fetus
muscle tissue
tissue that controls the internal movement of materials in the body, as well as external movement of the entire body.
neuron
cell that carries messages throughout the nervous system
stimulant
drug that speeds up the actions regulated by the nervous system
threshold
minimum level of a stimulus required to activate a neuron
connective tissue
tissue that holds organs in place and binds different parts of the body together
epithelial tissue
tissue that covers the surface of the body and lines itneral organs
hypothalamus
brain structure that acts as a control center for recognition and analysis of hunger thirst fatigue anger and body temp
myelin sheath
insulating memebrane surrounding the axon in some neurons
reflex
quick automatic response to a stimulus
synapse
location at which a neuron can transfer an impusle to another cell
depressant
drug that decreases the rate of functions regulated by the brain
feedback inhibition
process by which the product of a system shuts down the system or limits its operation
meninges
three layers of connective in which the brain and spinal cords are wrapped.
nervous tissue
issue that receives messages from the body's external and internal environment, analyzes the data, and directs the response
resting potential
difference in electrical charge across the cell membrane of a resting neuron
thalamus
brain structure that receives messages from the sense organs and relays the information to the proper regin of the cerebrum for further processing