Final answer:
The machine that measures arterial blood pressure is called a sphygmomanometer. It consists of an inflatable cuff, a pump, and a pressure meter. Blood pressure readings are reported as two numbers: the systolic pressure and the diastolic pressure.
Step-by-step explanation:
The machine that measures arterial blood pressure is called a sphygmomanometer. It consists of an inflatable cuff that wraps around the upper arm, a pump to inflate the cuff, and a pressure meter to measure the pressure. The cuff is inflated above the systolic pressure, and as the pressure is slowly released, the sound of blood flow can be heard through a stethoscope. The blood pressure reading is reported as two numbers: the systolic pressure (the higher number) and the diastolic pressure (the lower number).