Neurons
Which neuron sends motor information?
Multipolar
what is threshold?
-55 mV
What lobe is the primary motor cortex located in?
Frontal
Which structure connects the two hemispheres of the brain?
corpus callosum
True or False:
leak channels are always open, but ATP pumps only work when there is an Action Potential
False
Why do we get a hyperpolarization after the peak of an action potential?
The Potassium gates close slowly
What side of the Brain are Broca's and Werninke's area
left side
If I have a headache, what type of neural information is being sent?
afferent, visceral
Name the function of the following channels on a neuron:
Chemical
leak
pumps
voltage
chemical - allow influx/efflux of ions
leak - maintain membrane potential
Pumps- maintain membrane potential
voltage- transmit signal
During what phase of an action potential can another EPSP not be generated?
Absolute Refractory Period
What part of the brain is the insula found?
deep in the frontal cortex - lateral sulcus
In which type of neuron are the axon hillock and trigger zone in different locations?
Unipolar neuron
What is the only ion (of the ones we've discussed) that has a greater concentration inside the neuron?
potassium
What are the two types of signal summation? Describe what each would look like.
Temporal and Spatial
What is the Arcuate fasciculus and where is it found?
a band of fibers that connects Broca's and Wernicke's areas
What is the name of the structure in the brain that allows blood flow throughout?
Circle of Willis