Examlex
The synaptic vesicles are tiny pouches that hold the special chemical messengers manufactured by the neuron called neurotransmitters.
Neutrons
Subatomic particles found in the nucleus of an atom with no electric charge.
Protons
Subatomic particles found in the nucleus of an atom, carrying a positive electrical charge.
Isotope
Isotopes are variants of a particular chemical element which differ in neutron number, and consequently in nucleon number, but have the same number of protons in their atomic nuclei.
Neutrons
Subatomic particles with no electrical charge, found in the nucleus of an atom, and responsible for much of the mass of atoms.
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