Definitions for homeostasis
ˌhoʊ mi əˈsteɪ sɪshome·osta·sis

Princeton's WordNetRate this definition:3.0 / 4 votes

1. homeostasisnoun

   (physiology) metabolic equilibrium actively maintained by several complex biological mechanisms that operate via the autonomic nervous system to offset disrupting changes

GCIDERate this definition:3.0 / 9 votes

1. homeostasisnoun

   The ability and tendency of certain systems to maintain a relatively constant internal state in spite of changes in external conditions; this ability is achieved by the presence of feedback mechanisms which can adjust the state of the system to compensate for changes in the state caused by the external environment. It is exemplified in homeothermal biological systems, such as animals which maintain relatively constant blood temperature and composition in spite of variations in external temperature or the composition of the food ingested.

WiktionaryRate this definition:5.0 / 2 votes

1. homeostasisnoun

   The ability of a system or living organism to adjust its internal environment to maintain a stable equilibrium; such as the ability of warm-blooded animals to maintain a constant temperature.

2. homeostasisnoun

   Such a dynamic equilibrium or balance.

3. Etymology: Coined from ὅμος + ιστημι/stasis (from στάσις) by.

WikipediaRate this definition:0.0 / 0 votes

1. Homeostasis

   In biology, homeostasis (British also homoeostasis) (/hɒmɪə(ʊ)ˈsteɪsɪs/) is the state of steady internal, physical, and chemical conditions maintained by living systems. This is the condition of optimal functioning for the organism and includes many variables, such as body temperature and fluid balance, being kept within certain pre-set limits (homeostatic range). Other variables include the pH of extracellular fluid, the concentrations of sodium, potassium, and calcium ions, as well as the blood sugar level, and these need to be regulated despite changes in the environment, diet, or level of activity. Each of these variables is controlled by one or more regulators or homeostatic mechanisms, which together maintain life. Homeostasis is brought about by a natural resistance to change when already in optimal conditions, and equilibrium is maintained by many regulatory mechanisms: it is thought to be the central motivation for all organic action. All homeostatic control mechanisms have at least three interdependent components for the variable being regulated: a receptor, a control center, and an effector. The receptor is the sensing component that monitors and responds to changes in the environment, either external or internal. Receptors include thermoreceptors and mechanoreceptors. Control centers include the respiratory center and the renin-angiotensin system. An effector is the target acted on, to bring about the change back to the normal state. At the cellular level, effectors include nuclear receptors that bring about changes in gene expression through up-regulation or down-regulation and act in negative feedback mechanisms. An example of this is in the control of bile acids in the liver.Some centers, such as the renin–angiotensin system, control more than one variable. When the receptor senses a stimulus, it reacts by sending action potentials to a control center. The control center sets the maintenance range—the acceptable upper and lower limits—for the particular variable, such as temperature. The control center responds to the signal by determining an appropriate response and sending signals to an effector, which can be one or more muscles, an organ, or a gland. When the signal is received and acted on, negative feedback is provided to the receptor that stops the need for further signaling.The cannabinoid receptor type 1 (CB1), located at the presynaptic neuron, is a receptor that can stop stressful neurotransmitter release to the postsynaptic neuron; it is activated by endocannabinoids (ECs) such as anandamide (N-arachidonoylethanolamide; AEA) and 2-arachidonoylglycerol (2-AG) via a retrograde signaling process in which these compounds are synthesized by and released from postsynaptic neurons, and travel back to the presynaptic terminal to bind to the CB1 receptor for modulation of neurotransmitter release to obtain homeostasis.The polyunsaturated fatty acids (PUFAs) are lipid derivatives of omega-3 (docosahexaenoic acid, DHA, and eicosapentaenoic acid, EPA) or of omega-6 (arachidonic acid, ARA) are synthesized from membrane phospholipids and used as a precursor for endocannabinoids (ECs) mediate significant effects in the fine-tuning adjustment of body homeostasis.

ChatGPTRate this definition:0.0 / 0 votes

1. homeostasis

   Homeostasis is a term used in biology that refers to the processes that living organisms use to maintain a stable internal condition or environment, despite changes in external conditions. It involves various regulatory mechanisms and feedback systems that enable the organism to function properly, adapt to changes and ensure survival. Examples include the regulation of temperature, PH levels, water and electrolyte balance, blood pressure, and glucose levels.

WikidataRate this definition:4.7 / 3 votes

1. Homeostasis

   Homeostasis is the property of a system that regulates its internal environment and tends to maintain a stable, relatively constant condition of properties such as temperature or pH. It can be either an open or closed system. In simple terms, it is a process in which the body's internal environment is kept stable. It was defined by Claude Bernard and later by Walter Bradford Cannon in 1926, 1929 and 1932. Typically used to refer to a living organism, the concept of homeostasis was preceded by that of milieu intérieur, defined by Claude Bernard and published in 1865. Multiple dynamic equilibrium adjustment and regulation mechanisms make homeostasis possible. Homeostasis needs to be distinguished from simple dynamic equilibriums, which are not regulated, and steady states, which may be stable but sensitive to perturbations.

U.S. National Library of MedicineRate this definition:5.0 / 2 votes

1. Homeostasis

   The processes whereby the internal environment of an organism tends to remain balanced and stable.

Editors ContributionRate this definition:0.0 / 0 votes

1. homeostasis

   The ability, act and process of a system within the body of an animal or human being to adjust and regulate the systems to ensure balance and equilibrium is maintained.

   Homeostasis is maintained by a variety of systems using hormones and various other elements.

   
   

   Submitted by MaryC on September 6, 2020  

2. ---

   homeostasis

   استقرار داخلي، الإستثباب

   
   

   Submitted by dr.tarabzoun on May 25, 2021  

Matched Categories

1. • Equilibrium
   • Physiology

How to pronounce homeostasis?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say homeostasis in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of homeostasis in Chaldean Numerology is: 7

2. Pythagorean Numerology

   The numerical value of homeostasis in Pythagorean Numerology is: 8

Examples of homeostasis in a Sentence

1. RAS CARDO REGGAE:

   LIFE AND LONGEVITY MUST ACT IN SYNERGY. HERE'S, ONE EXAMPLE:-eg. SODIUM AND CHLORINE FORMS THE BASIS OF -TABLE SALT- SO OFTEN EATEN SAFELY ON OUR FOOD--BUT TAKEN SEPARATELY, ARE DEADLY POISONS WHICH WILL IMMEDIATELY KILL US. SYNERGY IN THEIR COMBINED EFFECTS GUARANTEES THEIR SAFETY FOR LIFE. THIS REASONING IS ANALOGOUS TO HOW-HOMEOSTASIS AND EQUILIBRIUM GIVES A CLUE TO THE BODY'S FUNCTIONAL NORMALITY.

2. Andrew Russo:

   I think migraine occurs when there's a departure from homeostasis or, in other words, when there's an imbalance in the body, what we think the medications are doing, such as blocking [ that protein ] ; apparently with yoga you're restoring that balance by reducing stress.

3. Kristin Gillespie:

   Over holiday weekends, we tend to consume large amounts of salt, which results in fluid retention and bloating, upping your water consumption following your holiday indulgence can help flush that extra salt out of your body and normalize your body water homeostasis.

Popularity rank by frequency of use

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=homeostasis
2. ^ GCIDE
   https://gcide.gnu.org.ua/?q=homeostasis
3. ^ Wiktionary
   https://en.wiktionary.org/wiki/Homeostasis
4. ^ Wikipedia
   https://en.wikipedia.org/wiki/Homeostasis
5. ^ ChatGPT
   https://chat.openai.com
6. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=homeostasis