The hoses are designed to provide low resistance to flow of the breathing gas.
Tungsten wire has a very low resistance when at room temperature.
A conductor with a larger area has a lower resistance.
Patients with low resistance are often quite responsive to pressure alone.
Higher concentrations of carbon, a good conductor, result in lower resistance.
With a relatively low internal resistance, they can supply high surge currents.
Or they get sick while in a group of people with low resistance.
Either way, a current-meter needs to be a much lower resistance.
Ribbons have a very low resistance that most amplifiers cannot drive directly.
Their analysis suggests that the well has a low resistance to a kick.