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Encyclopedia > Bioelectromagnetism

Bioelectromagnetism (sometimes equated with bioelectricity) refers to the electrical, magnetic or electromagnetic fields produced by living cells, tissues or organisms. Examples include the cell potential of cell membranes and the electric currents that flow in nerves and muscles, as a result of action potentials. This article or section may be confusing or unclear for some readers, and should be edited to rectify this. ... Drawing of the structure of cork as it appeared under the microscope to Robert Hooke from Micrographia which is the origin of the word cell. Cells in culture, stained for keratin (red) and DNA (green). ... Biological tissue is a collection of interconnected cells that perform a similar function within an organism. ... A crab is an example of an organism. ... In biological cells that are electrically at rest, the cytosol possesses a uniform electric potential or voltage compared to the extracellular solution. ... Electric current is by definition the flow of electric charge. ... Nerves (yellow) Nerves redirects here. ... A top-down view of skeletal muscle Muscle (from Latin musculus little mouse[1]) is contractile tissue of the body and is derived from the mesodermal layer of embryonic germ cells. ... A. A schematic view of an idealized action potential illustrates its various phases as the action potential passes a point on a cell membrane. ...

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Biological cells use bioelectricity to store metabolic energy, to do work or trigger internal changes, and to signal one another. Bioelectromagnetism is the electric current produced by action potentials along with the magnetic fields they generate through the phenomenon of electromagnetism. In biology, signal transduction is any process by which a cell converts one kind of signal or stimulus into another. ... Current (I) flowing through a wire produces a magnetic field () around the wire. ... Electromagnetism is the physics of the electromagnetic field; a field encompassing all of space which exerts a force on particles that possess the property of electric charge, and is in turn affected by the presence and motion of those particles. ...


Bioelectromagnetism is studied primarily through the techniques of electrophysiology. In the late eighteenth century, the Italian physician and physicist Luigi Galvani first recorded the phenomenon while dissecting a frog at a table where he had been conducting experiments with static electricity. Galvani coined the term animal electricity to describe the phenomenon, while contemporaries labeled it galvanism. Galvani and contemporaries regarded muscle activation as resulting from an electrical fluid or substance in the nerves. Electrophysiology is the study of the electrical properties of biological cells and tissues. ... The Doctor by Samuel Luke Fildes This article is about the term physician, one type of doctor; for other uses of the word doctor see Doctor. ... ... Luigi Galvani Luigi Galvani (September 9, 1737 – December 4, 1798) was an Italian physician and physicist who lived and died in Bologna. ... Distribution of frogs (in black) Suborders Archaeobatrachia Mesobatrachia Neobatrachia - List of Anuran families The frog is an amphibian in the order Anura (meaning tail-less from Greek an-, without + oura, tail), formerly referred to as Salientia (Latin saltare, to jump). ... Static electricity is a class of phenomena involving the net charge present on an object; typically referring to charged object with voltages of sufficient magnitude to produce visible attraction, repulsion, and sparks. ... In biology, galvanism is the contraction of a muscle that is stimulated by an electric current. ... Nerves (yellow) Nerves redirects here. ...


Bioelectromagnetism is an aspect of all living things, including all plants and animals. Bioenergetics is the study of energy relationships of living organisms. Biodynamics deals with the energy utilization and the activities of organisms. Some animals have acute bioelectric sensors, and others, such as migratory birds, are believed to navigate in part by orienting with respect to the Earth's magnetic field. Also, sharks are more sensitive to local interaction in electromagnetic fields than most humans. Other animals, such as the electric eel, are able to generate large electric fields outside their bodies. A crab is an example of an organism. ... Biological thermodynamics (Greek: bios = life and logikos = reason + Greek: thermos = heat and dynamics = power) is the study of energy transformation in the biological sciences. ... // Biodynamic agriculture, or biodynamics comprises an ecological and sustainable farming system, that includes many of the ideas of organic farming (but predates the term). ... Aves redirects here. ... The magnetosphere shields the surface of the Earth from the charged particles of the solar wind. ... Orders Carcharhiniformes Heterodontiformes Hexanchiformes Lamniformes Orectolobiformes Pristiophoriformes Squaliformes Squatiniformes Symmoriida(extinct) Sharks (superorder Selachimorpha) are fish with a full cartilaginous skeleton[1] and a streamlined body. ... Trinomial name Homo sapiens sapiens Linnaeus, 1758 Humans, or human beings, are bipedal primates belonging to the mammalian species Homo sapiens (Latin for wise man or knowing man) under the family Hominidae (the great apes). ... Binomial name Electrophorus electricus Linnaeus, 1766 The electric eel, Electrophorus electricus, is a species of fish. ... It has been suggested that optical field be merged into this article or section. ...


In the life sciences, biomedical engineering uses concepts of circuit theory, molecular biology, pharmacology, and bioelectricity. Bioelectromagnetism is associated with biorhythms and chronobiology. Biofeedback is used in physiology and psychology to monitor rhythmic cycles of physical, mental, and emotional characteristics and as a technique for teaching the control of bioelectric functions. The AbioCor artificial heart, an example of a biomedical engineering application of mechanical engineering with biocompatible materials for Cardiothoracic Surgery using an artificial organ. ... An electrical network is an interconnection of electrical elements such as resistors, inductors, capacitors, and switches. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... Chronobiology is a field of science that examines periodic (cyclic) phenomena in living organisms. ... Biofeedback mechanism. ... Leonardo da Vincis Vitruvian Man, an important early achievement in the study of physiology. ... Psychology is an academic and applied discipline involving the scientific study of mental processes and behavior. ...


Bioelectromagnetism involves the interaction of ions. Bioelectromagnetism is sometimes difficult to understand because of the differing types of bioelectricity, such as brainwaves, myoelectricity (e.g., heart-muscle phenomena), and other related subdivisions of the same general bioelectromagnetic phenomena. One such phenomenon is a brainwave, which neurophysiology studies, where bioelectromagnetic fluctuations of voltage between parts of the cerebral cortex are detectable with an electroencephalograph. This is primarily studied in the brain by way of the electroencephalogram or "EEG." Multivalent redirects here. ... Electroencephalography is the neurophysiologic measurement of the electrical activity of the brain by recording from electrodes placed on the scalp or, in special cases, subdurally or in the cerebral cortex. ... Neurophysiology is a part of physiology as a science, which is concerned with the study of the nervous system. ... International safety symbol Caution, risk of electric shock (ISO 3864), colloquially known as high voltage symbol. ... Location of the cerebral cortex Slice of the cerebral cortex, ca. ... Electroencephalography is the neurophysiologic exploration of the electrical activity of the brain by the application of electrodes to the scalp. ... In animals, the brain, or encephalon (Greek for in the head), is the control center of the central nervous system. ...


Volume Conductors

In standard electrical engineering guidelines, the 3 fundamental units of Resistance, Voltage & Current are seen as inhomogeneous values(ie: discrete). However, in Bioelectromagnetism these 3 fundamental units are treated as a single homogeneous object, a method of working with this rule is a visual model called a Volume conductor....


See also

Signals in Biology refer to an electric quantity (voltage or current or field strength) whose modulation represents coded information about the biological source from which it comes, and are also known as Biopotentials. ... Electrophysiology is the study of the electrical properties of biological cells and tissues. ... Electroencephalography is the neurophysiologic measurement of the electrical activity of the brain by recording from electrodes placed on the scalp or, in special cases, subdurally or in the cerebral cortex. ... Electroencephalography is the neurophysiologic measurement of the electrical activity of the brain by recording from electrodes placed on the scalp or, in special cases, subdurally or in the cerebral cortex. ... This article or section is in need of attention from an expert on the subject. ... The resting potential of a cell is the membrane potential that would be maintained if there were no action potentials, synaptic potentials, or other active changes in the membrane potential. ... A. A schematic view of an idealized action potential illustrates its various phases as the action potential passes a point on a cell membrane. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... Electrochemical potential is a thermodynamic measure that reflects energy from entropy and electrostatics and is typically invoked in molecular processes that involve diffusion. ... English chemists John Daniell (left) and Michael Faraday (right), both credited to be founders of electrochemistry as known today. ... An electric fish is a fish that can generate electric field]s. ...

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Reference.com/Encyclopedia/Bioelectromagnetism (451 words)
Bioelectromagnetism (sometimes equated with bioelectricity) refers to the electrical, magnetic or electromagnetic fields produced by living cells, tissues or organisms.
Bioelectromagnetism is the electric current produced by action potentials along with the magnetic fields they generate through the phenomenon of electromagnetism.
Bioelectromagnetism is sometimes difficult to understand because of the differing types of bioelectricity, such as brainwaves, myoelectricity (e.g., heart-muscle phenomena), and other related subdivisions of the same general bioelectromagnetic phenomena.
Bioelectromagnetism - Wikipedia, the free encyclopedia (463 words)
Bioelectromagnetism (sometimes equated with bioelectricity) refers to the static voltage of biological cells and to the electric currents that flow in living tissues, such as nerves and muscles, as a result of action potentials.
Bioelectromagnetism is the electric current produced by action potentials along with the magnetic fields they generate through the phenomenon of electromagnetic induction.
Bioelectromagnetism is sometimes difficult to understand because of the differing types of bioelectricity, such as brainwaves, myoelectricity (e.g., heart-muscle phenomena), and other related subdivisions of the same general bioelectromagnetic phenomena.
  More results at FactBites »

 
 

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