5. What are the specific types of channels found along the membrane of the dendrites and...

5. What are the specific types of channels found along the membrane of the dendrites and cell body? For

each channel stated, identify what ions will cross the channel and in what direction? Indicate if the ions

would cause an excitatory post-synaptic potential or an inhibitory post-synaptic potential.

Dendrites/cell body

Channels	Ions	What direction?	The intracellular fluid becomes more positive or negative	Cause excitatory post-synaptic potential or inhibitory post-synaptic potential

Expert Solution

There are neurotransmitters in neurons which produces excitatory or inhibitory response during chemical synapse.

Acetylcholine interacts with the receptor expressed on dendrites on post synaptic neurons.This leads to the opening of voltage gated Sodium ion channel and finally the influx of sodium ions.At the resting potential both the concentration and electrical gradients favors the movement of sodium ions into the postsynaptic neurons.This leads to overall depolarization in the postsynaptic membrane.The intracellular fluid becomes more positive and it causes an excitatory synaptic potential.

There are inhibitory neurotransmitters that causes opening of chloride or potassium ion channels and therefore inhibits the action potential generation.The ion movements into the cell leads to a greater internal negativity and slight membrane hyperpolarization.The resulting hyperpolarization inhibits any further action potential.

gladiator answered 2 hours ago

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