Neurophysiology Quiz

Sodium ions flow through channels opened by these neurotransmitters.

An inhibitory neurotransmitter that reduces neuron excitability.

These proteins have three subunits.

Activation of these proteins triggers metabolic processes, genetic transcription, and new protein creation.

The primary excitatory neurotransmitter in the brain.

Neurons communicate through receptor binding onto these receptors by triggering protein synthesis and dendrite growth.

These drugs can alter how receptors bind and thus neuron communication.

This occurs due to a blood clot, leading to oxygen deprivation.

The study of neuronal communication.

Experience can alter neuron size and synapses, changing neurotransmitter strength.

The electrical potential across the neuron's membrane when it is not actively signaling which is -70mV.

Neurons use neurotransmitters and receptors through these junctions to communicate.

This is maintained by the phospholipid bilayer, ion channels, and pumps.

The opening of these channels at a threshold value triggers this.

This insulates axons and enables saltatory conduction.

These pumps require energy in the form of ATP.

This ensures one-directional signal propagation.

Charge difference vs. ion concentration difference.

These cells support neuron structure and communication.

Brain scans, PET imaging and calcium imaging are example of this technique.

This is maintained by the phospholipid bilayer, charged ions, and electrical chemical gradient.

The myelin sheath insulates the axon, allowing for a faster propagation of the action potential.

An action potential to be initiated when the depolarization reaches a threshold. This further leads to sodium and potassium channels opening and closing

Gaps along the axon where the action potential is regenerated.

Refractory periods prevent continuous firing of neurons and assure that the signal is only traveling in one direction.

Disorders like multiple sclerosis and decreased neural communication efficiency arise when the myelin sheath undergoes degradation.

Saltatory conduction increases the speed of charge along the axon by allowing action potentials to leap between nodes.

Neural integration is related to integrating of multiple inputs from presynaptic neurons, engaging temporal and spatial.

Neurochemistry is responsible for the communication between neurons, involving postsynaptic potentials, synapses, and neurotransmitters.

Receptors encode and affect signals, with different neurotransmitters affecting different receptors