Nerve fibres of the parasympathetic nervous system arise from the central nervous system. Specific nerves include several cranial nerves, specifically the oculomotor nerve, facial nerve, glossopharyngeal nerve, and vagus nerve. Three spinal nerves in the sacrum (S2-4) also act as parasympathetic nerves.
The word longevity is sometimes used as a synonym for life expectancy in demography - however, the term longevity is sometimes meant to refer only to especially long-lived members of a population, whereas life expectancy is always defined statistically as the average number of years remaining at a given age.
Bonding is a mutual, interactive process, and is different from simple liking. Bonding typically refers to the process of attachment that develops between romantic partners, close friends, or parents and children.This bond is characterized by emotions such as affection and trust.ny two people who spend time together may form a bond. Male bonding refers to the establishment of relationships between men through shared activities that often exclude females. The term female bonding refers to the formation of close personal relationships between women.