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.
synÂ·apse. n. The junction across which a nerve impulse passes from an axon terminal to a neuron, muscle cell, or gland cell. intr.v. synÂ·apsed, synÂ·apsÂ·ing, synÂ·apsÂ·es. 1. To form a synapse.2.he junction across which a nerve impulse passes from an axon terminal to a neuron, muscle cell, or gland cell. intr.v. synÂ·apsed, synÂ·apsÂ·ing, synÂ·apsÂ·es. 1. To form a synapse. 2.