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.
1 A synapse is the point of connection between the endfoot of one neuron and the membrane of another. The word is derived from Greek and means to fasten together.. It is at synapses that one cell influences the activity of another.  There are two broad categories of synapses: chemical synapses and electrical synapses.