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They are neurons that can be found in all six of cortical layers (except layer 1), and they are excitatory projection neurons.
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∙ 13y ago
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What is the function of cells of Martinotti?
They are present in all six layers of cortex (except layer 1). Whenever Pyramidal neurons (another type of neurons that are also found in cortical layers) are over-excited, cells of Martinotti will send inhibitory signals to surrounding neurons. Simply, they are involved in "cortical dampening mechanism".
What are the types of neurons that can be found in the external granular and external pyramidal layers of neocortex?
in external granular (layer 2) = stellate + small pyramidal neuronsin external pyramidal (layer 3) = medium pyramidal neurons
What is the type of neurons that are present in the internal pyramidal layer of neocortex?
The "internal pyramidal layer" is the 5th layer of neocortex. You can find lots of large pyramidal neurons at this layer and they project their axons to subcortical structure.You can also find the "giant pyramidal cells of Betz" at this 5th layer of the motor areas. They are very large and they send their axons to corticospinal tract.
What condition is characterized by cortical atrophy and loss of neurons in the parietal and temporal lobes?
Alzheimer's disease.
What is used to record the activity of large groups of cortical neurons just below the skull?
electroencephalograph
What is the full form of CRFS?
CRFS stands for "Cortical Response Frequency Shift", which is a phenomenon observed in neuroscience relating to changes in the frequency response of cortical neurons in the brain.
State the structure of neurons which reduces leakage of impulses?
Myelin sheath, which is only found on long axons (white matter), not on short cortical neurons (grey matter).
What are the four main types of neurons that can be found in the six horizontal layers of cerebral cortex?
pyramidal neuronsstellate (granule) neuronsfusiform neuronscells of martinotti
What technique of studying the brain involves recording the electrical activity of large groups of cortical neurons?
The technique of studying the brain involving the electrical activity of the large groups of cortical neurons is calles an EEG. The process of conducting an EEG is to place electrodes on different parts of the scalp and recording the electrical signals.
Is Spastcity pyramidal or extra pyramidal?
pyramidal
What is the difference between the internal granular layer at the sensory areas compared to the motor areas?
Internal granular layer is the 4th layer (from 6 horizontal layers of neocortex).sensory areas = also called "granular cortical areas" because they have many granule neurons in their well-developed layer 4motor areas = also called "agranular cortical areas" because they have less granule neurons in their thin layer 4
What are cortical deficits?
Lacunar strokes LACK cortical deficits. Exactly what are cortical symptomes, I do not know. =-(
