Neurons
What are the three main structures of a neuron?
Cell body, axon, dendrites
What Gyrus cups the lateral sulcus?
supramarginal gyrus
what is brodmann areas 3,1,2?
postcentral gyrus
Signal/code fo the nervous system
Myasthenia gravis is an autoimmune diesase that targets what receptor at the neuromuscular junction?
acetylcholine receptors
what makes up the cytoskeleton of a neuron?
microtubule, neurofilament, microfilament.
where is heschl's gyri located?
it is seen when you pull the temporal lobe away from rest of brain.
what is brodmann area 22?
wernickes area
what are the 3 phases of an action potential?
depolarization, hyperpolarizationa dn refactory period
What is the aid for myasthenia gravis?
Anticholinestrase
what is saltatory conduction?
The propagation of action potentials down a myelinated axon. the potential jumps from one node of Ranvier to the next, increasing in conduction velocity each time.
on the midsagittal cut, what is the sulcus that divides the parietal and occiptial lobes?
parietoocciptial sulcus
what is brodmann area 41, 42
heschl's gyri
what is the restig potential of a neuron
-70 to-85 mV
What is alzheimers disease?
What are the four main types of neurotransmitters?
Acetylcholine, glutamate, GABA, Glycine
on the midsagittal cut, what is the gyri located superior to the corpus callosum called?
cingulate gyrus
what is brodmann area 17
primary visual cortex
How does action potential begin?
Na+ channels open allowing more sodium to enter, this causes an increase in positive voltage.
Name a few clinical symptoms of alzheimers disease?
memory issues, thinking and reasoning, poor judgement skills, issues with planning and performing tasks and changes in personality/behavior
astrocytes, oligodendroglia, microglia, epdenymal cells.
on the ventral view, the sulcus that sits below the olfactory bulb/tract is called?
olfactory sulcus
what is brodmann area 44,45?
Brocas Area
What happens during repolarization period of action potential?
The cells voltage is decreasing this will lead it back to its resting potential
What is the neuropathological reason behind Alzheimer's disease?
cytoskeletal abnormalities, amyloid deposits lead to senile plaque and inflammation in cells.