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English Wikipedia references for Physiology.org 1-20 of 401
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| Anxiety Anxiety is a psychological and physiological state characterized by cognitive, somatic, emotional, and behavioral components. These components combine to create an unpleasant feeling that is typically associated with uneasiness, fear, or worry.Anxiety is a generalized mood condition that occurs without an identifiable triggering stimulus. Anxiety | |
| Adenosine triphosphate Adenosine-5'-triphosphate (ATP) is a multifunctional nucleotide, and plays an important role in cell biology as a coenzyme that is the "molecular unit of currency" of intracellular energy transfer. In this role, ATP transports chemical energy within cells for metabolism. Adenosine_triphosphate | |
| Antioxidant antioxidant is a molecule capable of slowing or preventing the oxidation of other molecules. Oxidation is a chemical reaction that transfers electrons from a substance to an oxidizing agent. Oxidation reactions can produce free radicals, which start chain reactions that damage cells. Antioxidant | |
| Brain The brain is the center of the nervous system in all vertebrate, and most invertebrate, animals. Some primitive animals such as jellyfish and starfish have a decentralized nervous system without a brain, while sponges lack any nervous system at all. In vertebrates, the brain is located in the head, protected by the skull and close to the primary sensory apparatus of vision, hearing, balance, taste, and smell. Brain | |
| Calcium Calcium () is the chemical element with the symbol Ca and atomic number 20. It has an atomic mass of 40.078 amu. Calcium is a soft grey alkaline earth metal, and is the fifth most abundant element by mass in the Earth's crust. Calcium is also the fifth most abundant dissolved ion in seawater by both molarity and mass, after sodium, chloride, magnesium, and sulfate.Calcium is essential for living organisms, particularly in cell physiology, where movement of the calcium ion Ca2+ into and out of the cytoplasm functions as a signal for many cellular processes. Calcium | |
| Cell nucleus Cell_nucleus | |
| Cat Cat | |
| Cytosol cytosol or intracellular fluid (or cytoplasmic matrix) is the liquid found inside cells. In eukaryotes this liquid is separated by cell membranes from the contents of the organelles suspended in the cytosol, such as the mitochondrial matrix inside the mitochondrion. Cytosol | |
| Endocytosis Endocytosis is the process by which cells absorb material (molecules such as proteins) from outside the cell by engulfing it with their cell membrane. It is used by all cells of the body because most substances important to them are large polar molecules that cannot pass through the hydrophobic plasma membrane or cell membrane. The process opposite to endocytosis is exocytosis. Endocytosis | |
| Genetically modified organism genetically modified organism (GMO) or genetically engineered organism (GEO) is an organism whose genetic material has been altered using genetic engineering techniques. These techniques, generally known as recombinant DNA technology, use DNA molecules from different sources, which are combined into one molecule to create a new set of genes. Genetically_modified_organism | |
| Helium Helium () is the chemical element with atomic number 2, and is represented by the symbol He. It is a colorless, odorless, tasteless, non-toxic, inert monatomic gas that heads the noble gas group in the periodic table. Its boiling and melting points are the lowest among the elements and it exists only as a gas except in extreme conditions.An unknown yellow spectral line signature in sunlight was first observed from a solar eclipse in 1868 by French astronomer Pierre Janssen. Helium | |
| Hypoglycemia Hypoglycemia or hypoglycaemia is the medical term for a pathologic state produced by a lower than normal level of blood glucose. The term hypoglycemia literally means "under-sweet blood" (Gr. hypo-, glykys, haima).Hypoglycemia can produce a variety of symptoms and effects but the principal problems arise from an inadequate supply of glucose as fuel to the brain, resulting in impairment of function (neuroglycopenia). Hypoglycemia | |
| Homeostasis Homeostasis (from Greek:hómos, "similar"; and ιστημι, histēmi, "standing still"; defined by Walter Bradford Cannon in 1929 + 1932) is the property of a system, either open or closed, that regulates its internal environment and tends to maintain a stable, constant condition. Homeostasis | |
| Insulin Talk:Insulin | |
| Ion channel Not to be confused with Ion Television.Ion channels are pore-forming proteins that help establish and control the small voltage gradient across the plasma membrane of all living cells (see cell potential) by allowing the flow of ions down their electrochemical gradient. They are present in the membranes that surround all biological cells. Ion_channel | |
| Laika Laika (from the , a breed of dog, literally meaning "Barker" or "Howler") was a Soviet space dog (c. 1954–November 3, 1957) who became the first living mammal to orbit the Earth and the first orbital casualty. Little was known about the impact of space flight on living things at the time Laika's mission was launched. Laika | |
| Motion (physics) In physics, motion means a change in the location of a body. Change in motion is the result of applied force. Motion is typically described in terms of velocity, acceleration, displacement, and time. An object's velocity cannot change unless it is acted upon by a force, as described by Newton's first law also known as Inertia. Motion_(physics) | |
| Nutrition Nutrition (also called nourishment or aliment) is the provision, to cells and organisms, of the materials necessary (in the form of food) to support life. Many common health problems can be prevented or alleviated with a healthy diet. Nutrition | |
| Nociception Nociception (synonymnoxious stimuli." It is the afferent activity produced in the peripheral and central nervous system by stimuli that have the potential to damage tissue. Nociception | |
| Platypus The Platypus (Ornithorhynchus anatinus) is a semi-aquatic mammal endemic to eastern Australia, including Tasmania. Together with the four species of echidna, it is one of the five extant species of monotremes, the only mammals that lay eggs instead of giving birth to live young. It is the sole living representative of its family (Ornithorhynchidae) and genus (Ornithorhynchus), though a number of related species have been found in the fossil record. Platypus |
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