Neuron Structure
Receives a Stimulus
What is Dendrites
Chanel opens using electrical gradients across the membranes
What is voltage-gated channel
Action potential travels from dendrites to axon hillock down the axon to the axon terminal
What is nerve impulse
The opening of sodium channels causes the cell to become more_______
Delivers the signal to the neuron terminal
What is Axon
Channel opens using a physical force
What is mechanically gated channel
The nerve impulse at any given segment of the axon goes from ____________ to _________ to __________ stages (correct order?)
What is depolarization, repolarization, resting?
The stage of action potential when the cell is saturated with sodium ions and stops inflow of ions
What is peak
Signal is passed from one neuron to the next using these signaling molecules
What are Neurotransmitters
Chanel opens with a signaling molecule binding to a GPCR or RTK cell surface receptor
What is extracellular ligand-gated channel
These structures wrap around the axon and act as conductors to speed up a nerve impulse
What is myelin sheath
The cell is becoming this when the resting membrane potential becomes more negative
The cell that receives the signal at the synapse
What is post-synaptic cell
These are the ligands that control ligand gated channels
These structures are gaps in a neuron axon that promotes jumping of the nerve impulse
What are nodes of ranvier
After undershoot the cell regains resting membrane potential with the help of which channel/pumps
What is Na/K pump?
The cell that transmits the signal at the synapse
What is pre-synaptic cell
Channel opens with a G-Protein binding to a GPRC membrane protein on the cytosolic side
What are intracellular ligand gated channels
The delivery of signals from one neuron to the next at a steady state
What is neuron firing
The opening of these channels promotes fusion of synaptic vesicles at the synapse
What is Ca channels