They are chemicals synthesized in the
soma whose function is to transmit information from one neuron
to another.
These
substances are released and undergo a change in
chemical concentration which allows
neurons to communicate, these
chemicals are called
neurotransmitters.
To convey this information neurons must go through a space called separating two consecutive synaptic neurons.
Neurotransmitters are the most important
substances in the synapse. We can
say then, that Neurotransmitters
are chemical messengers that use
nerve cells to
communicate with each other.
There
are various kinds of neurotransmitters,
each with specific functions:
·
Amino Acids
·
Monoamines.
·
Peptides
SINAPSIS
Is the contact between two neurons
or between a neuron and a muscle or gland?
In whose touch the
nerve impulse occurs. The synapse
is that allows neurons communicate with each other, transforming
an electrical signal into a chemical.
TYPES OF SINAPSIS
There
are two types of synapses
Electrical synapses: The pulses are transmitted from cell to cell, the electric current passes from the presynaptic neuron (neuron
that has the pulse) to the postsynaptic neuron (neuron that receives the impulse). The membranes of the
two neurons are connected by junctions
called GAP, the exchange occurs by the passage of ions from one cell to
another communication .so is faster than chemical
synapses because occurs
directly and do not need chemicals.
Chemical synapses: Here, the
pre neuron synaptic
and post synaptic are separated by a space called the synaptic cleft, occurs by the secretion of
neurotransmitters.