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.
Synapse Synapse. The gap between the axon of one nerve cell and the dendrite of another nerve cell is called the synapse. Synapses are the space into which neurotransmitters aâ¦re released from the axon to act on the dendrite, and thus transmit a signal between neurons.