Synaptic Transmission
A chemical messenger that can travel across the synapse.
What is a neurotransmitter?
The neuron at rest with a membrane potential of -70mv.
What is resting membrane potential?
-70mv
What is resting membrane potential?
Cell transport that requires no energy.
What is passive transport?
This channel allows for the passive transport of Na+ ions along the concentration gradient when a ligand binds to the channel.
Neurotransmitters are stored in these organelles before exocytosis.
What is a vesicle?
A small increase in positivity on the inside of the cell without a full action potential.
What is local depolarization?
-55mv
What is threshold?
Molecules moving from high concentrations to low concentrations.
What is diffusion?
This channel allows for the movement of Na+ ions along the concentration gradients when the channel senses a certain voltage.
What is a voltage gated Na+ channel?
This neurotransmitter is the "feel good" neurotransmitter.
What is dopamine?
During this time a neuron cannot send another signal.
What is refractory period?
-80mv
What is hyperpolarization?
A type of passive transport used to move ions and polar molecules with the assistance of channels.
What is facilitated diffusion?
This dance was made popular by Alfonso Ribeiro.
What is the carlton?
This method of clearance takes unused neurotransmitter back into the cell that released it.
What is reuptake?
A flow of positive ions moving into the cell causing an increase in positivity inside the cell?
+30mv. Sodium channel are open.
What is depolarization?
The type of energy required for active transport.
What is ATP?
A difference of concentrations between two regions. For example, inside and outside the cell.
What is a concentration gradient?
This is the byproduct of enzyme degradation.
What is metabolite?
A flow of positive ions to the outside of the cell causing a decrease in positivity on the inside of the cell.
What is repolarization?
+35mv, Na+ channels are closed. K+ channels are open.
What is repolarization?
A specialized protein that allows 3 Na+ ions out of the cell and 2 K+ ions into the cell.
What is the Na+/K+ pump?
Your teachers government name.
Marcos Jorge Velasco