The Neuron
Neurotransmission
Synaptic Transmission
Adrenaline vs. noradrenaline
Drugs and neurotransmitters
100

What sends messages towards the cell body?

Dendrites

100

At rest, is the inside of a neuron positively or negatively charged?

Negative

100

What is released from the pre-synaptic neuron and binds to receptor sites on the postsynaptic neuron?

Neurotransmitters

100

What nervous system is activated when adrenaline and noradrenaline are released?

The sympathetic nervous system

100

Name the three classifications of drugs

- depressant

- stimulant

- hallucinogen

200

What is the soma also known as?

The cell body

200

What is the name of the electrical signal that a neuron fires?

Action Potential

200

What model is used to describe how the neurotransmitter binds to receptor sites?

The lock-and-key model

200

What effect do adrenaline and noradrenaline have on thoughts?

1 of the following:

- increased rate of thoughts

- increased attention

- increased memory


200
What classification of drug is alcohol?

A depressant

300

What insulates the axon?

The myelin sheath

300

How does the body communicate stronger messages?

By stimulating more neurons and sending the messages more frequently.
300

What transports and releases the neurotransmitter?

Vesicles

300

What effect to adrenaline and noradrenaline have on feelings?

1 of the following:

- feelings of fear/ anxiety/ panic

- feelings of paranoia

300

True or False: The nervous system responds to drug us by releasing less dopamine and reducing the number of dopamine receptor sites.

True

- this leads to addiction as the body relies on the drug for dopamine

400

What type of cell is a neuron?

A nerve cell

400
What voltage is the neuron at rest?

- 70mV

400

What is the name of the process in which neurotransmitters are recycled and transported back to the presynaptic terminal?

Reuptake

400

What effect do adrenaline and noradrenaline have on behaviour?

1 of the following:

- fleeing behaviour

- aggressive behaviour

400

What does serotonin regulate?

1 of the following:

- mood

- anxiety

- appetite

- sleep cycle

- body temperature

500

Define a neuron

A specialised nerve cell which carries messages through an electrochemical process.

500

At what voltage will the neuron fire an action potential?

-55 mV

500

True or False: the presynaptic and postsynaptic neuron never touch.

True

500

True or false: noradrenaline is a hormone

False

noradrenaline is a neurotransmitter (remember they both start with n), adrenaline is a hormone

500

Define psychoactive drug

A chemical substance that affects the brain, therefore, impacting the wat a person thinks and feels, and consequently the way they behave.

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