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22 Cards in this Set

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Which ion has the greatest energy to move when the cell membrane permeability changes?
Na+, sodium
When Na+ crosses the neuron membrane, what happens?
depolarization; excitatory
When K+ crosses the neuron membrane, what happens?
repolarization; inhibitory
When Ca++ crosses the neuron membrane, what happens?
neurotransmitters are released
What is an axon hillock?
A cone-shaped area from which the axon originates out of the cell body. Functionally, the integration zone of the neuron.
What is another word for the limbic cortex?
Cingulate Gyrus
The substantia nigra of the midbrain produce?
GABA
What is part of both the basal ganglia and the limbic system?
Amygdala (fear response/dissonance detector)
What is the limbic system?
olfactory bulbs, amygdala,
The "spaghetti" it's a bunch of skinny portions so it is easily damaged
What is the tectum?
roof of the upper brainstem
What is the function of the hippocampus?
It is where our memories go through
What is the Septal Nucleus?
part of the limbic system
pleasure zone in animals
re
What is the basal ganglia?
what's inside the limbic system's spaghetti (including thalamus, putamen, caudate nucleus, globus padillus, amygdala)
What are the parts of the limbic system?
amygdala, hippocampus, hypothalamus, septal nucleus, fornix
What is Dale's Law?
one neuron uses only one neurotransmitter; not always the case
What is the Rolandic Fissure?
The Central Sulcus
What is another word for the lateral fisure?
The Sylvian Fissure
What is the longitudinal fissure?
The divider between the two hemispheres
What is the precentral gyrus also called?
Primary motor cortex
What is the postcentral gyrus
Primary somatasensory cortex
What are presynaptic actions?
synthesis of neurotransmitters, storage, vesicles, presynaptic membrane activities
Which is dependent on the diameter of the axon?
a. Size of potential
b. Speed of potential
c. Frequency of the potential
d. all of the above
c. frequency of the potential