The spleen (from Greek ÏÏÎ»Î®Î½âsplá¸n) is an organ found in virtually all vertebrates. Similar in structure to a large lymph node, it acts primarily as a blood filter. The spleen plays important roles in regard to red blood cells (also referred to as erythrocytes) and the immune system. It removes old red blood cells and holds a reserve of blood, which can be valuable in case of hemorrhagic shock, and also recycles iron.
Amperage is a term often used by electricians, and means electrical current, measured in amperes, or amps. The ampere is the SI unit for electrical current, or the amount of electrical charge that flows through a conductor in a given time.One ampere is a charge of one coulomb â about 6.241 X 10 18 electrons â per second flowing past a given point. current of one amp at one volt uses one watt of power. The power used by a device is simply amps multiplied by volts, so an appliance rated at ten amps plugged in to a 110-volt supply will use 1,110 watts.
An operational amplifier (often op-amp or opamp) is a DC-coupled high-gain electronic voltage amplifier with a differential input and, usually, a single-ended output.