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Thinking about the action potential: the nerve signal as a window to ... frontiersin.org Frontiers 5 facts
claimIchiji Tasaki claimed that neuronal excitability is determined by the tuning of the bistable state of the ectoplasmic gel, which exists as a continuum of states ranging from a Ca2+-contracted form to a swollen Na+/K+ form.
claimThe colloidal state of the ectoplasm gel polymer in neuronal axons is regulated by the ratio of the concentration of bivalent calcium ions (Ca2+) to monovalent ions, specifically sodium (Na+) and potassium (K+).
claimThe concept of the 'ion channel' initially served as a designation for the relative contribution of ions, specifically sodium (Na+) and potassium (K+), to action potential generation and propagation, rather than denoting an actual physical mechanism.
referenceIn the Hodgkin and Huxley model, the action potential is presented as the result of depolarization-induced, voltage- and time-dependent opening and closure of ion channels in the membrane, allowing the passive flow of sodium (Na+) and potassium (K+) ions into and out of the neuronal cytoplasm along their respective electrochemical ion gradients.
referenceWilliams (1970) published a Tilden lecture in the Quarterly Reviews, Chemical Society regarding the biochemistry of sodium, potassium, magnesium, and calcium.
Neuroanatomy, Neuron Action Potential - StatPearls - NCBI Bookshelf ncbi.nlm.nih.gov National Library of Medicine 3 facts
claimSodium-potassium antiporters pump sodium out of the cell into the extracellular space and pump potassium into the intracellular compartment.
claimNeuronal action potentials are generated and propagated by changes to the cationic gradient, primarily involving sodium and potassium, across the plasma membrane.
measurementAt normal body temperature, the equilibrium potential for sodium is +55 mV, and the equilibrium potential for potassium is -103 mV.
Investigation of nutritional and phytochemical properties of wild ... nature.com Nature 3 facts
procedurePhosphorus in a plant digest is analyzed using the Canada-molybdate yellow color method, Potassium and Calcium are analyzed using a flame photometer, Sulfur is evaluated using a turbidimetric process, and Sodium, Zinc, Copper, Iron, and Manganese are determined using atomic absorption spectrophotometry.
measurementRybicka and Gliszczyńska-Świgło analyzed the content of calcium, potassium, magnesium, sodium, copper, iron, manganese, and zinc in grain gluten-free products in a 2017 study.
procedureMineral analysis of medicinal plants determines the presence of essential elements including sodium (Na), potassium (K), calcium (Ca), magnesium (Mg), iron (Fe), zinc (Zn), copper (Cu), and manganese (Mn).
Human body | Organs, Systems, Structure, Diagram, & Facts britannica.com Britannica 1 fact
claimIons of calcium, phosphorus, sodium, potassium, and magnesium play vital roles in the metabolic processes of the human body.
Evolutionary Eating — What We Can Learn From Our Primitive Past todaysdietitian.com Juliann Schaeffer · Today’s Dietitian 1 fact
claimCordain asserts that late Paleolithic hunter-gatherer diets differed from the modern Western diet by having a lower glycemic load, a net base yielding to the kidney, higher potassium and lower sodium levels, higher fiber levels, more protein, fewer carbohydrates, and higher levels of vitamins, minerals, and phytochemicals.
7 Major Organ Systems: Functions and Connections instituteofhumananatomy.com Institute of Human Anatomy 1 fact
claimAldosterone regulates sodium and potassium levels in the body, which influences blood pressure and fluid balance.
What Is Inflammation? Types, Causes & Treatment my.clevelandclinic.org Cleveland Clinic 1 fact
claimThe DASH Diet is an eating approach that can be used to reduce sodium intake and increase potassium intake.
The role of light in regulating plant growth, development and sugar ... frontiersin.org Frontiers 1 fact
measurementAmaranth plants grown under red or blue light show accumulation of sodium (Na) and potassium (K) minerals.
Origins and evolution of the Western diet: health implications for the ... academia.edu The American journal of clinical nutrition 1 fact
claimThe dietary shift to high sodium and low potassium intake in modern populations has no evolutionary precedent and exacerbates chronic health issues.
Vernonia amygdalina: a comprehensive review of the ... frontiersin.org Frontiers 1 fact
claimVernonia amygdalina seeds contain vitamin C, vitamins B1 and B2, sodium, potassium, calcium, magnesium, iron, zinc, and manganese.
Systems and organs | Anatomy and Physiology | Research Starters ebsco.com EBSCO 1 fact
claimAldosterone, the major mineralocorticoid, modifies the kidneys' excretion of sodium, potassium, and hydrogen.