Controls vital functions like blood pressure, heart rate, respiration, digestion. First part of brain to evolve. Part of brainstem - helps with body's autonomic functions and reflexes. Respiration, heart rate, swallowing, digestion. Relay station for nerve signals to and from the brain. Part of brainstem - Relays sensory information, helps control autonomic functions and has a role in levels of arousal or consciousness and sleep.
n. 1. (Philosophy) the traditional philosophical problem concerning the nature of mind, body, and the relationship between them. See dualism 2, interactionism, parallelism 3, monism 1, idealism 3, materialism 2, identity theory, behaviourism 2.
Species problem. The species problem is the set of questions that arises when biologists attempt to define what a species is. Such a definition is called a species concept; there are at least 26 recognized species concepts. A species concept that works well for sexually reproducing organisms such as birds is useless for species that reproduce asexually, such as bacteria. The scientific study of the species problem has been called microtaxonomy.