MYTUTOR SUBJECT ANSWERS

1058 views

How does neurotransmission across a synapse occur?

Neurotransmission, put simply, is how your brain controls your body. It occurs by the passage of action potentials (electrical signals) across a synapse between two or more neurons. Neurons don't touch each other, but contact between it and thousands of other neurons is made using neurotransmitters. 

When an action potential reaches the axon terminal, neurotransmitters stored in vesicles in the terminal buttons of axons are released into the synaptic cleft. In the cleft, the neurotransmitters bind with corresponding receptors of post-synaptic neurons and lead to a configurational change in the neuron, allowing positively charged particles to enter the neuron. This begins another action potential in the dendrite of the neuron. 

After neurotransmission, the neurons are released into the synapse where they are either reabsorbed or deactivated by enzymes.

If, in case, the neurotransmitter is blocked or replaced, the physiological state is affected, leading to a change in mood, cognition and behaviour. 

Krish M. IB Psychology tutor, IB Chemistry tutor, IB Biology tutor, G...

2 years ago

Answered by Krish, an IB Psychology tutor with MyTutor


Still stuck? Get one-to-one help from a personally interviewed subject specialist

6 SUBJECT SPECIALISTS

£30 /hr

Marcella M.

Degree: Psychology and neuroscience (Bachelors) - Cambridge University

Subjects offered:Psychology, Italian+ 4 more

Psychology
Italian
Extended Project Qualification
English Language
-Personal Statements-
-Oxbridge Preparation-

“Cambridge University student with a passion for learning and interested in making it enjoyable and productive for everyone!”

MyTutor guarantee

|  2 completed tutorials

£26 /hr

Ioannis P.

Degree: Performance Psychology (Masters) - Edinburgh University

Subjects offered:Psychology, English+ 2 more

Psychology
English
Classical Greek
-Personal Statements-

“About me: I am a postgraduate student at the University of Edinburgh. I have always had a real passion for psychology and how the mind and body interact and can lead us to unleash the full potential we possess as human beings. Through ...”

£36 /hr

Sarah T.

Degree: PGCE (Masters) - Durham University

Subjects offered:Psychology, Maths+ 1 more

Psychology
Maths
Chemistry

“About me: In 2015 I graduated from Durham University. Whilst there I had the most amazing time studying Psychology, Chemistry and Education. Science has always interested me and I find it fascinating how we can use scientific methods ...”

About the author

£20 /hr

Krish M.

Degree: Psychology (Bachelors) - Durham University

Subjects offered:Psychology, Chemistry+ 1 more

Psychology
Chemistry
Biology

“First year Psychologist undergraduate. Passionate about science and looking help students doing the IB with psychology, biology and even chemistry. ”

MyTutor guarantee

You may also like...

Other IB Psychology questions

What are some methods of control in experiments?

Describe one research study which has investigated schema theory.

How should I best approach SAQs to get the highest marks in Paper 1? Could you give an example?

What is the best way to revise for an IB Psychology HL/SL exams?

View IB Psychology tutors

We use cookies to improve your site experience. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok