Electrical activity in the NS

-70mV

All or none law

Threshold phase, depolarising phase, re-polarising phase, refractory period

<p>Neuron will not respond to additional stimulation</p> Signup and view all the answers

<p>Neuron will respond to additional stimulation - if it is strong enough</p> Signup and view all the answers

<p>Excitatory post synaptic potential (EPSP)</p> Signup and view all the answers

<p>Inhibitory post synaptic potential (IPSP)</p> Signup and view all the answers

<p>Synthesis and storage in presynaptic neuron, release by presynaptic axon terminal, produces response in postsynaptic cell</p> Signup and view all the answers

<p>Neuro-muscular junction (NMJ)</p> Signup and view all the answers

<p>Basal ganglia</p> Signup and view all the answers

<p>Inhibit pain by blocking substance P</p> Signup and view all the answers

<p>Enhances perception of pain</p> Signup and view all the answers

<p>Inhibit pain by suppressing release of substance P</p> Signup and view all the answers

<p>Spatial, temporal</p> Signup and view all the answers

<p>Input from multiple cells</p> Signup and view all the answers

<p>Effect of a series of synaptic potentials that occur within milliseconds of each other</p> Signup and view all the answers

The electrical potential difference across the membrane of a neuron when it is at rest.

The principle that states that an action potential either occurs fully or not at all, regardless of the strength of the stimulus.

The stages of an action potential, starting from the initial change in membrane potential until the neuron returns to its resting state.

The period during which a neuron absolutely cannot fire another action potential, no matter how strong the stimulus.

The period during which a neuron can fire another action potential, but only if the stimulus is stronger than usual.

A change in the membrane potential of a postsynaptic neuron that makes it more likely to fire an action potential.

A change in the membrane potential of a postsynaptic neuron that makes it less likely to fire an action potential.

Chemicals that transmit signals across synapses.

The neurotransmitter responsible for muscle contraction at the neuromuscular junction.

A neurotransmitter primarily involved in movement, reward, and motivation.

Naturally occurring painkillers in the brain.

A neurotransmitter that enhances the perception of pain.

Neurotransmitters that inhibit pain by blocking the release of Substance P.

The process by which multiple presynaptic neurons combine their signals to influence a postsynaptic neuron.

The process by which a single presynaptic neuron releases multiple signals in rapid succession to influence a postsynaptic neuron.