As you age the following things take place in your skin: 1  The amount of collagen produced is diminished and the type of collagen changes from a more youthful type of collagen to an older type of collagen. The production of collagen never ends. 2  The Elastin in your skin decreases in content as well as production.
The definition of a synapse is the junction between two neurons or nerve cells where there is a small gap that neurotransmitters help nerve impulses to cross.
The synapse is the membrane on the nerve of the presynaptic terminal. The synapse is the space between the presynaptic neuron and the postsynaptic neuron. Synapse is a term used to define the total transmission of the impulse from the presynaptic neuron to the postsynaptic neuron.