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45 Cards in this Set

  • Front
  • Back
thalamus
relays sensory information
cerebellum
regulates coordinated movement
limbic system
regulates emotions and motivated behavior
hippocampus
memory
amygdala
emotional control and the formatin of emotional memories
hypothalamus
manages the body's internal state
motor cortex
controls actions of body's voluntary muscles
cerebrum
regulates the brains higher cognative and emotional functions
cerebral cortex
involved in complex mental processes
somatosensory cortex
processes info about temp, touch, body position and pain
corpus collasum
mass of nerve fibers that connects the hemispheres
frontal lobe
motor control and cognitive activities
parietal lobe
touch, pain and temperature
occipital lobe
visual info
temporal lobe
hearing
auditory cortex
processes auditory info
visual cortex
processes visual input
association cortex
planning and decision making
split brain
severing corpus collasum to treat severe epilepsy
Sperry and Gazzaniga
devised situations that could allow visual info to be presented separately to each hemi
endocrine system
network of glands that manufactures and secretes hormones
hormones
chemical messengers
pituitary gland
master gland, ten hormones, makes other glands secrete
testosterone
stimulates the production of sperm
estrogen
stimulates hormone that makes ova release from ovaries
neuron
cell specialized to receive, process, and/or transmit info to other cells
dendrites
receives incoming signals
soma
cell body (contains nucleus)
axon
single extended fiber that transmits to terminal buttons
terminal buttons
allow neuron to stimulate nearby glands, muscles, or other neurons
sensory neurons
carry messages from sense receptor cells to the CNS
motor neurons
carry messages AWAY from CNS to muscles and glands
interneurons
relay messages from sensory neurons to other interneurons or to motor neurons.
glia
cells that hold neurons in place
myelin sheath
insulated cover formed by glia
blood brain barrier
astrocytes form an envelope of fatty material around blood vessels in brain
excitatory input
fire!
inhibitory input
dont fire!
action potential
the right pattern of excitatory inputs that make the neuron fire
resting potential
fluid inside the cell is polarized (slightly negative)
ion channels
excitable portions of the cell membrane that selectively permit certain ions to flow in and out
depolarized
sodium rushes into the cell making the inside positive
all or none law
the size of the action potential is unaffected by increases in the intensity of stimulation beyond the threshold level
self propogating
action potential needs outside stimulation to keep itself moving
refractory period
during absolute- neuron won't move
during relative- will movie if the stimulus is stronger than usual