Neurons and Nerve Impulses

Front

Primary function of dendrites in a neuron

Back

To receive signals and conduct them to the cell body

Front

Name of the fatty covering around an axon

Back

Myelin sheath

Front

Structure in a neuron that speeds up the transmission of impulses

Back

Nodes of Ranvier

Front

Role of the synapse in nerve impulse transmission

Back

To transmit signals across a gap between neurons

Front

Type of ions responsible for nerve impulse transmission

Back

Sodium and potassium

Front

Term used for the electrical signals conducted by neurons

Back

Action potentials

Front

Neurotransmitters are stored in synaptic vesicles before their release.

Back

They are located in axon terminals.

Front

The release of neurotransmitters into the synaptic cleft is triggered by the arrival of an action potential.

Back

This occurs when an action potential reaches the axon terminal.

Front

When neurotransmitters bind to receptors on the post-synaptic membrane, ion channels may open or close.

Back

This can lead to changes in the post-synaptic neuron's activity.

Front

The gap between two neurones is called the synaptic cleft.

Back

This is the space where neurotransmitters are released.