Neural Transmission

Question 1

The Nodes of Ranvier are found on which part of the nerve cell?

Answer 1

The axon.

Question 2

During which phase of the nerve impulse (action potential) is the membrane in a resting state and the neuron cannot fire?

Answer 2

Hyperpolarization

Question 3

What is a synapse?

Answer 3

A connection between brain cells (neurons)

Question 4

The flow of which ion is mostly relevant to produce the action potential in a nerve cell (neuron)?

Answer 4

Sodium

Question 5

When a neuron is at rest, its resting potential is generally at:

Answer 5

-70mV

Question 6

In the synaptic terminals, where are the neurotransmitters stored?

Answer 6

Synaptic vesicles

Question 7

Which two mechanisms result in the movement of ions when ion-channels open in the neuron (choose two)?

Answer 7

Diffusion and Electrostatic pressure

Question 8

The ‘support cells’ of the nervous system are called:

Answer 8

Glial cell

Question 9

What types of summation can generate a nerve impulse (action potential)?

Answer 9

Spatial and temporal

Question 10

In what order does information flow down a neuron?

Answer 10

dendrite, cell body, axon, terminal