02-02-02-Neurons and synaptic transmission

What is the basic function of a neuron?

• To store energy

• To transmit information through electrical and chemical signals

• To provide structural support for the brain

• To protect against infection

Which part of the neuron receives incoming signals from other neurons?

• Axon

• Dendrites

• Myelin sheath

• Axon terminals

The long fibre that carries the electrical impulse away from the cell body is called:

• Synapse

• Axon

• Soma

• Node of Ranvier

What is the role of the myelin sheath?

• To create neurotransmitters

• To speed up transmission of electrical impulses

• To connect neurons to muscles

• To detect neurotransmitters in the synapse

The gaps in the myelin sheath where the impulse “jumps” are known as:

• Synaptic clefts

• Nodes of Ranvier

• Axon terminals

• Dendritic gaps

What is the function of the axon terminals?

• Store neurotransmitters and release them into the synapse

• Speed up neural transmission

• Receive signals from other neurons

• Produce the action potential

Which part of the neuron contains the nucleus?

• Dendrites

• Cell body (soma)

• Axon

• Synapse

What is the space between two neurons where neurotransmitters are released called?

• Synapse / synaptic cleft

• Node of Ranvier

• Axon terminal

• Vesicle

Which of the following best describes dendrites?

• Long, thin fibres that carry messages away

• Branch-like structures that receive signals

• Fatty covering on the axon

• Chemical messengers

Which of the following is NOT part of a neuron’s structure?

• Myelin sheath

• Synaptic cleft

• Ribosome

• Dendrite