How resting potential take place?
142110
I assume you mean resting potential of the cell, for example a neuron.  It is created by biological pumps that pump ions into or out of the cell at to set up a specific electrochemical gradient.  So you get a voltage across the cell membrane along with a concentration gradient of sodium, potassium, chloride, and calcium.  When a signal is present it opens differnt pores that allow ions to cross the membrane quickly which causes an action potential and the desired effect, whether it be neurotransmitter being released, or calcium from the Sarcoplasmic reticulum.  The resting potential is the standard state for a cell maintained by the Na/K pump as well as calcium and chloride pumps that are generally ATP dependent.  ATP is the energy of the cell.  I can't remember off the top of my head if extracellular/intracellular concentrations of K,Na, Ca, and Cl but this shoudl give you the general idea.
956248
The hydrostatic pressure is generated by the pumping force of the heart. It pushes water out of the capillaries.\n\nThe water potential is created due to the inability of large solutes to pass through the capillary walls. This buildup of solutes induces osmosis. The water passes from a high concentration (of water) to a low concentration in an attempt to reach an equilibrium. This draws water back into the vessels. Because the blood in the capillaries is constantly flowing, equilibrium is never reached.\n\nThe balance between the two forces is different at different points in the capillaries. At the arterial end of the vessel, the hydrostatic pressure is greater than the water potential, so the net movement (see net flux) favors water and other solutes being passed into the tissue fluid. At the venous end, the water potential is greater, so the net movement favours substances being passed back into the capillary. This difference is created by the direction of the flow of blood, and the imbalance in solutes created by the net movement of water favoring the tissue fluid
655650
seversdatter - As Mark_the_nurse has noted, the numbers you give are only a small part of the information that can be gleaned from an EKG.  More of the information can be determined by analyzing the pattern of waveforms on the EKG.  The numbers above are generated by the computer and represent the timing of certain events in the cardiac cycle.\n\n- The heart rate of 66bpm is normal.\n- The PR interval represents the time it takes for a signal to get from your sinoatrial node down to the ventricles.  It can be prolonged in patients with disease of the conduction system or shortened in patients with accessory pathways.  Yours is normal.\n- The QRS duration represents the amount of time it takes for an electrical signal to be distributed throughout the ventricles.  It can be prolonged in patients with disease of the conduction system or in patients with heart failure, for example.  Yours is normal.\n- The QT interval represents that amount of time it takes for the ventricles to repolarize after they have been activated by a normal electrical impulse.  People with prolonged QT intervals may be at risk for arrhythmias and cardiac arrest.  Your is normal.\n- The P, R, and T axes indicate the direction in which the electrical impulse is traveling.  Yours are all normal.\n\nIf you have questions about the EKG itself, it would be better for you to have a physician look at the whole study and review it with you.  It is possible for all these numbers to be within the normal range while the overall EKG is still abnormal.
259472
ELECTRICAL IMPULSES sent down by "nodes" thru conducting pathways towards the atria and ventricles.......these atria and vents r made of muscles which contract on recievin the electrical shocks........and thats when the blood moves forward\nwhen their is no impulse being sent forward........the chambers of the heart relax and get filled with blood.....\n\njust waiting for the next impulse to come by and the heart contracts again\n\nthis goes on n on till u die!
80523
For the sake of simplicity (I hope)  The normal electrical impulse begins in the sinus node of the atria..."p" wave Both atria contract and the electrical pulse passes on to   the ventricle...QRS wave and the ventricals contracts. The heart rests and repolarizes...this is the "T" wave.  If there is a true "R" on "T" complex...this is bad....the "R" is depolarizing as the "T" is trying to repolarize ....kinda like a premature beat before the heart is ready for it....a person can go into a bad arrhythmia like V-Fib.  This can happen when there is truely an "R" on "T" complex...often it is misread.
105755
I suspect it is a biochemical process. I skimmed the attached reference, and here is what I was able to pull out: \n\nThere is a complicated process that takes place in the neurons. Chemical action separates positive sodium and potassium ions from anions across a membrane, creating an electric field. Neurotransmitters open ion gateways in the membrane when the field is built up to a certain level. This allows an electromagnetic wave to travel down the nerve. \n\nIt is MUCH more complicated than that, but that is a simplified cartoon version of the events I think.
959019
The earths magnetic field is static, but an Alternating Current source will fluctuate, reversing its  North-south polarity 60 times a second.\n\nThe affects of fluctuating magnetic fields are very different from the effects of a fixed field.\n\n"A strong changing magnetic field can induce electrical currents in conductive tissue, such as the brain. Since the magnetic field will penetrate tissue, it can be generated outside of the head to induce currents within, hence Transcranial magnetic stimulation. These currents will depolarize neurons in a selected part of the brain, leading to changes in the patterns of neural activation."\n\nSee the link below for more details:
276026
"As the action potential envelops the bouton (the terminal bouton at the end of the axon), the synaptic vesicles attach to the bouton membrane at the active zone.  Once attached they release their chemical messenger into the synaptic cleft where it diffuses to the post synaptic membrane.  There the chemical messenger combines with a receptor protein, a process that alters the ionic conductance and consequently the membrane potential of the post synaptic cell.  This may initiate an action potential in the post synaptic neuron."\n\nTo summarize:\nThe action potential arrives at the synaptic junction.  There it stimulates the release of the chemical messenger, known as a neurotransmitter, into the synaptic cleft.  If enough neurotransmitter chemicals cross the synaptic cleft and attach to receptors on the 2nd neuron, a new action potential is initiated in the 2nd neuron.
638457
its the rhythm \nin physics it is called Resonance\ncheers
392117
Live point is at high potential and neutral is at zero potential.\n\nThe Earth point is connected to earth which is also at zero potential.\n\n One of the terminals of any electrical appliances is connected to live and the other to neutral to complete the circuit.\n\nThese appliances usually have metal parts for covering and for some specific purposes. (Example- iron in iron box) \n\nWhen handling these appliances there is always a chance for the live wire to make contact with the metal parts of the appliances by accident. And they acquire high potential. This, if we touch the appliances unknowingly it may lead fatal consequences.\n\nOn the other hand if these metal parts are properly earthed, if by accident live wire touches the metal parts then at once it is earth connected and  due to heavy current the fuse blows off, preventing any probable accident.
799467
its normal. when do you take your resting heart rate?If you take it during the day when you aren't doing anything odds are it will still be higher then usual. Take it before you go t obed and whe nyou wake up in the morning
506618
If I´m not wrong, they return the membrane potential to basal, by allowing a strong K+ outward current that tends to overcome the diminishing inward Na+ current due to Na-channels being inactivated. K-channels become activated by the positive membrane potential caused by Na+ influx, and the eflux of K+ restores the membrane potential to negative levels, preparing the membrane for a new action potential.
506358
an energy oscillation
950937
You're in luck.  I teach physics and I know exactly how to answer this question (it's based on the work-energy principle).  It's pretty simple, really.  But it would be best if we discussed it by messenger.  Yahoo Messenger me, my ID is\nfortitudinousskeptic\n\n- Kevin
672366
DEFINITION:\n\nKinetic energy of a moving body is defined as the work done to bring it to rest. \n\n\nILLUSTRATION: \n\nIf a particle of mass 'm' is moving with velocity 'u' along a straight line and if a force 'F' is applied (in a direction opposite to its velocity) on it to bring it to rest after travelling 's' distance then the work done to bring the body to rest from its present state of motion is '-F*s' (force*displacement; - sign appears as work is done on the body and not by the body). \n\nWe know from mechanics 'V^2=u^2+2*f*s'_______(1) \nwhere 'v'=final velocity, 'u'=initial velocity and 'f'=constant acceleration of a particle in rectilinear motion (i.e. motion in a straight line).\n\nHere final velocity is zero as the body comes to rest finally, so v=0.\n\nAlso, f=F/m (since from Newton's second law F=m*f).\n\nSubstituting these values of 'v' and 'f' in eqn. (1) we get\n0 = u^2+2*(F/m)*s\nor s=-(m*u^2)/(2*F)___________(2)\n\nThus the work done to bring the body to rest from its present state of motion = -F*s = (-F)*{-(m*u^2)/(2*F)} = (m*u^2)/2. This is the expression for kinetic energy of a body in translation.\n\nUNIT:\n\nS.I. unit: Joule\nM.K.S. unit: erg\nN.B.: 1Joule=10^7erg
846839
My hunch is that with a bit more time separation between the stimuli, that the nerve cells would have time to recover between firing signals, and that they could build a greater action potential.  \n\nI'm a bit perplexed as to why you'd be tackling this problem at 7:30 AM on Thanksgiving Day......or are you in Europe?
866207
the cell dividing force lol. theres no such force. it's a spontaneous occurence