current

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current

 [kur´ent]
1. something that flows.
2. specifically, electricity transmitted through a circuit.
alternating current a current that periodically flows in opposite directions; its amplitude fluctuates as a sine wave.
convection current a current caused by movement by convection of warmer fluid into an area of cooler fluid.
direct current a current that flows in one direction only; when modeled as a wave, its amplitude is constant. When used medically it is called galvanic current. This current has distinct and important polarity and marked secondary chemical effects.
galvanic current a steady direct current.
current of injury an electric current that flows between injured myocardium and normal myocardium, because such cells have a reduced membrane potential; it may be either diastolic or systolic.
current of injury, diastolic the current that flows from injured to noninjured tissue during electrical diastole.
current of injury, systolic the current that flows from healthy tissue to injured tissue during electrical systole.
inwardly rectifying current current that rectifies so that it passes more easily towards the interior of a cell.
leakage current the electrical current that exists in the parts or metal case of electrical equipment.
outwardly rectifying current current that rectifies so that it passes more easily towards the exterior of a cell.
potassium rectifying c's transmembrane currents that rectify inwardly or outwardly to make adjustments in cellular functions; they are mainly responsible for the repolarization phase of the action potential. There are at least six mechanisms by which potassium ions move across cardiac cell membranes in the role of rectifier.

cur·rent

(ker'rĕnt),
A stream or flow of fluid, air, or electricity.
[L. currens, pres. p. of curro, to run]

current

/cur·rent/ (kur´ent)
1. anything that flows.

action current  the current generated in the cell membrane of a nerve or muscle by the action potential.
alternating current  a current which periodically flows in opposite directions.
convection current  a current caused by movement by convection of warmer fluid into an area of cooler fluid.
direct current  a current flowing in one direction only.
electric current  the stream of electricity that moves along a conductor. Symbol I .
galvanic current  a steady direct current, especially one produced chemically.
current of injury  a flow of current to (systolic c. of injury) or from (diastolic c. of injury) the injured region of an ischemic heart, due to regional alteration in transmembrane potential.
pacemaker current  the small net positive current flowing into certain cardiac cells, such as those of the sinoatrial node, causing them to depolarize.

current

[kur′ənt]
Etymology: L, currere, to run
1 a flowing or streaming movement.
2 a flow of electrons along a conductor in a closed circuit; an electric current.
3 certain physiological electrical activity and characteristics of blood circulation. Physiological currents include abnerval current, action current, axial current, centrifugal current, centripetal current, compensating current, demarcation current, and electrotonic current. See also alternating current, direct current, volt, watt.

current

The amount of electrical charge carried/unit time. See Alternating current, M current, Radiofrequency current.

cur·rent

(kŭr'ĕnt)
A stream or flow of fluid, air, or electricity.
[L. currens, pres. p. of curro, to run]

cur·rent

(kŭr'rĕnt)
A stream or flow of fluid, air, or electricity.
[L. currens, pres. p. of curro, to run]

current,

n a measure of the number of electrons per second that pass a given point on a conductor.
current, alternating,
n a current that alternately changes its direction of flow. It usually consists of 60 complete cycles/sec.
current, coagulating,
n an electrical current, delivered by a needle, ball, or other variously shaped points, that coagulates tissue.
current dental terminology (CDT),
n a listing of descriptive terms and identifying codes developed by the American Dental Association (ADA) for reporting dental services and procedures to dental benefits plans.
current, direct,
n an electrical current in which the electron flow is in only one direction.
current, galvanic,
n a direct current created by a battery.
current procedural terminology (CPT),
n a listing of descriptive terms and identifying codes developed by the American Medical Association (AMA) for reporting practitioner services and procedures to medical plans and medicare.
n the maximum current in a roentgen-ray tube that fully uses all electrons that are available at the cathode for the production of roentgen rays.

current

that which flows; electric transmission in a circuit.

alternating current
a current that flows in opposite directions sinusoidally.
direct current
a current whose direction is always the same.

Patient discussion about current

Q. I am looking for help. I am diagnosed with ADHD and currently under medication. I am looking for help. I am diagnosed with ADHD and currently under medication. I often get angry for silly issues. And I hate the company of others. I don’t like anyone and sometimes feel angry but hide within me. Please help in any way. Thank you!

A. I feel that you need some additional medication to calm your anger and agitation. I think attending psychotherapy along with medications will help you more. Psychotherapy will help you learn how to plan better and how to lower the stress and anger that you frequently feel.

Q. Can any one guide me…..my wife is in trouble…please help…We are currently taking all possible tests….. hi all, my wife is diagnosed with the breast cancer and the report revealed that it has spread into the chest bone. As per my knowledge bone cancer is dangerous. Can any one guide me…..my wife is in trouble…please help…We are currently taking all possible tests…..

A. I am sorry for your wife….its really a bad time for you. Bone cancer which is the result of breast cancer is a matter of concern and is diffcult to be taken care of. But the chemotherapy, surgery and radiation treatments are very potent to control the spread of cancer to bone from breast. You must get your tests done first and do check for the symptoms of regular cough, breath shortness and chest infections. All this indicates the requirement for the quick treatment. Don’t worry …..everything will be fine.

Q. Hi I want to gain my weight. 23yrs old 176mts height and my current weight is 56kgs..

A. Hi there. Lots of milkshakes should do it. That's what a nutritionist told me. What is mts? How does that relate to inches. How does kgs relate to pounds? Thank you.

More discussions about current
References in classic literature ?
This eddy carried me about a league on my way back again, directly towards the island, but about two leagues more to the northward than the current which carried me away at first; so that when I came near the island, I found myself open to the northern shore of it, that is to say, the other end of the island, opposite to that which I went out from.
About four o'clock in the evening, being then within a league of the island, I found the point of the rocks which occasioned this disaster stretching out, as is described before, to the southward, and casting off the current more southerly, had, of course, made another eddy to the north; and this I found very strong, but not directly setting the way my course lay, which was due west, but almost full north.
As to the east side of the island, which I had gone round, I knew well enough there was no venturing that way; my very heart would shrink, and my very blood run chill, but to think of it; and as to the other side of the island, I did not know how it might be there; but supposing the current ran with the same force against the shore at the east as it passed by it on the other, I might run the same risk of being driven down the stream, and carried by the island, as I had been before of being carried away from it: so with these thoughts, I contented myself to be without any boat, though it had been the product of so many months' labour to make it, and of so many more to get it into the sea.
This cursed current plays the devil with a navigator.
This very current was partly responsible for that name.
Once more the trick river reversed its current, but this time the Scarecrow was on guard and used the pole to push the raft toward a big rock which lay in the water.
After passing the wall of water the current did not change or flow backward any more but continued to sweep them steadily forward.
I could not imagine what might cause this strong lateral flow, for the main channel of the river was plainly visible to me from where I sat, and I could see the rippling junction of it and the mysterious current which had aroused my curiosity.
This is one of the characteristics of the middle and lower part of the Missouri; but still more so of the Mississippi, whose rapid current traverses a succession of latitudes so as in a few days to float the voyager almost from the frozen regions to the tropics.
The current continued to be strong; but it was steady, and though they met with frequent rapids, none of them were bad.
Crooks and one of his companions were thrown amidst roaring breakers and a whirling current, but succeeded, by strong swimming, to reach the shore.
My first attempt satisfied me that there was no reasonable hope, burdened as I now was, of breasting the strong current running toward the mid-river from either bank.