in today's video we will zoom into the sinapse and take a closer look at how neurons communicate neurotransmission or more specifically synaptic transmission describes the transfer of biological information between two neurons transmission takes place at the so-called sinapse the syapse is where the sending neuron also called the preoptic cell comes really close to the neuron receiving the information known as the post synaptic cell as these two cells do not touch each other this small Gap in between is referred to as the synaptic CFT this is where the magic happens the synaptic transmission starts off with an action potential that arrives at the accent terminal of the preoptic cell in response to that voltage gated calcium channels in the cell membrane are activated and as a result calcium which is much more abundant outside the cell streams into the interior of the cell the calcium ions fulfill an important role here calcium helps to initiate membrane Fusion of the vesicles packed with neurotransmitters when the synaptic vesicles fused with the membrane at the exent terminal the neurotransmitters are released into the synaptic Clift this process is commonly known as exocytosis there are various neurotransmitters with many different functions to name a few f famous examples neurotransmitters can be amino acids such as glycine glutamic acid or Gaba further you may have heard about dopamine and maybe even acetal choline but as I said there is way more when the neurotransmitters are released they diffuse across the Clift and bind to receptors on the post synaptic neuron the response to that is based on the specific neurotransmitter molecule and the respective receptor protein receptor activation either leads to an opening or closing of ion channels in the postseptic cell membrane neurotransmitter receptor interaction can increase the chance that the post synaptic cell is activated and an action potential is generated that travels down the cell some neurotransmitter receptor interactions however can also inhibit an electrical signal this means depending on the type of syapse the electrical information can be influenced for further communication in the neuron worth mentioning here is that neurotransmitter molecules only bind to receptors for a very short time once they detach the ion channels return to their resting state the reason for that neurotransmitters are enzymatically degraded or reabsorbed by the Exxon terminal this phenomenon is very important for the application of medications if you want to study more about how a neuron is build up you may check out this video here please don't forget to like the video If if it was helpful to you thanks for watching