Category: Neuronal Function
|Basis of Neuron Function (Neuronal Function )|
Neurons communicate within themselves, ionically and electrotonically, but between each other through chemical transmitters to receptors. Cytological features within neurons and in the plasma membrane form functional features that provide this diversity.
|Resting Potentials (Neuronal Function )|
The basis of the Resting Potential is four ions : Na, Ca, Cl, K. Three ions (Na, Ca, Cl) are pumped into the extracellular space leaving the cytosol with low concentrations of each ion. Potassium accumulates inside of neurons.
|Initial Segment (Neuronal Function )|
The initial segment of axons has specialized features that make it the center for triggering action potentials. Action potentials are the means of short and long pathway signaling that links many regions of the brain such as sensory, motor and MIND systems. Initiation of action potentials occurs only at the initial segment.