Homeostasis
Homeostasis, also spelled homoeostasis (from Greek: ὅμοιος homœos, "similar" and στάσις stasis, "standing still"), is the property of a system in which variables are regulated so that internal conditi...
Brain Region That Plays Central Role In Addiction Identified
Scientists have identified a region of the brain that may hold the key to helping people quit smoking and to treating other forms of addiction. Researchers in two studies have found that smokers who s...
Yale Team Sheds Light On Century-Old Biochemical Mystery
Given plenty of glucose and oxygen, yeast and cancer cells do not burn it all to produce energy but convert much of it to the byproducts ethanol and lactate, respectively. In the 1920s Nobel laureate ...
Human homeostasis
Human homeostasis (homeostasis is from Greek: ὅμοιος homoios, "similar" and στάσις stasis, "standing still") is the property of homeostasis within the human body.The human body manages a multitude of...
Risk homeostasis
Risk compensation is a theory which suggests that people typically adjust their behavior in response to the perceived level of risk, becoming more careful where they sense greater risk and less caref...
Thermoregulation
Thermoregulation is the ability of an organism to keep its body temperature within certain boundaries, even when the surrounding temperature is very different. A thermoconforming organism, by contrast...
Human iron metabolism
Human iron metabolism is the set of chemical reactions maintaining human homeostasis of iron. The control of this necessary but potentially toxic substance is an important part of many aspects of huma...
Brain Region That Plays Central Role In Addiction Identified
Scientists have identified a region of the brain that may hold the key to helping people quit smoking and to treating other forms of addiction. Researchers in two studies have found that smokers who s...
Hyperthermia
Hyperthermia is elevated body temperature due to failed thermoregulation that occurs when a body produces or absorbs more heat than it dissipates. Extreme temperature elevation then becomes a medica...
Theory of functional systems
Theory of functional systems - is a model that describes the structure of conduct, which was established by Russian and Soviet biologist and physiologist Pyotr Anokhin.Functional systems were put forw...
Milieu intérieur
Milieu intérieur or interior milieu, from the French, milieu intérieur (the environment within), is a phrase coined by Claude Bernard to refer to the extra-cellular fluid environment, and its physiolo...
Blood lipids
Blood lipids (or blood fats) are lipids in the blood, either free or bound to other molecules. They are mostly transported in a protein capsule, and the density of the lipids and type of protein deter...
Homeotherm
Homeothermy is thermoregulation that maintains a stable internal body temperature regardless of external influence. This temperature is often, though not necessarily, higher than the immediate environ...
Basal body temperature
Basal body temperature is the lowest body temperature attained by during rest (usually during sleep). It is generally measured immediately after awakening and before any physical activity has been und...
Neural top down control of physiology
Neural top down control of physiology concerns the direct regulation by the brain of physiological functions (in addition to smooth muscle and glandular ones). Cellular functions include the immune sy...
Gigantothermy
Gigantothermy (sometimes called ectothermic homeothermy) is a phenomenon with significance in biology and paleontology, whereby large, bulky ectothermic animals are more easily able to maintain a cons...
Renin-angiotensin system
The renin–angiotensin system (RAS) or the renin–angiotensin–aldosterone system (RAAS) is a hormone system that regulates blood pressure and water (fluid) balance.When renal blood flow is reduced, juxt...
Enantiostasis
Enantiostasis is the ability of an open system, especially a living organism, to maintain and conserve its metabolic and physiological functions in response to variations in an unstable environment. E...
Insular cortex
In each hemisphere of the mammalian brain the insular cortex (often called insula, insulary cortex or insular lobe) is a portion of the cerebral cortex folded deep within the lateral sulcus (the fissu...
Acid-base homeostasis
Acid–base homeostasis is the part of human homeostasis concerning the proper balance between acids and bases, also called body pH. The body is very sensitive to its pH level, so strong mechanisms exis...
Osmoregulation
Osmoregulation is the active regulation of the osmotic pressure of an organism's fluids to maintain the homeostasis of the organism's water content; that is, it keeps the organism's fluids from becomi...
Proteostasis
Proteostasis, a portmanteau of the words protein and homeostasis, is the concept that there are competing and integrated biological pathways within cells that control the biogenesis, folding, traffick...
Thermal neutral zone
A thermal neutral zone (TNZ) is essentially an endotherm's temperature tolerance range. Within the TNZ the basal rate of heat production is in equilibrium with the rate of heat loss to the external en...
Blood sugar regulation
For homeostasis, insulin is the main hormone involved.Blood sugar regulation is the process by which the levels of blood sugar, primarily glucose, are maintained by the body. Glucose regulation in th...
Hypothermia
Hypothermia (from Greek ὑποθερμία) is defined as a body core temperature below 35.0 °C (95.0 °F). Symptoms depend on the temperature. In mild hypothermia there is shivering and mental confus...
Kleptothermy
Kleptothermy is any form of thermoregulation by which an animal shares in the metabolic thermogenesis of another animal. It may or may not be reciprocal, and occurs in both endotherms and ectotherms. ...
Human thermoregulation
Thermoregulation is the ability of an organism to keep its body temperature within certain boundaries, even when the surrounding temperature is very different. A thermoconforming organism, by contrast...
Daisyworld
Daisyworld, a computer simulation, is a hypothetical world orbiting a star whose radiant energy is slowly increasing or decreasing. It is meant to mimic important elements of the Earth-Sun system, an...
Baroreceptor
Baroreceptors (or archaically, pressoreceptors or baroceptors) are sensors located in the blood vessels of all vertebrate animals. They sense the blood pressure and relay the information to the brain,...
Homeorhesis
Homeorhesis, derived from the Greek for "similar flow", is a concept encompassing dynamical systems which return to a trajectory, as opposed to systems which return to a particular state, which is ter...
Warm-blooded
The term warm-blooded is a colloquial term to describe animal species that have a relatively high blood temperature when compared with ectothermic ones, and maintain thermal homeostasis primarily thr...