Question

From equipment point of view, the respiratory system in the human body is a _________ system.

(a) hydraulic

(b) pneumatic

(c) mechanical

(d) electrical

I got this question by my college professor while I was bunking the class.

I want to ask this question from Recording Electrodes topic in chapter Bioelectric Signal and Electrodes of Biomedical Instrumentation

Answer 1

The correct answer is (b) pneumatic

The explanation is: Respiratory system is a pneumatic system in which an air pump (diaphragm) alternately creates negative and positive pressures in a sealed chamber (thoracic cavity) and causes air to be sucked into and forced out of a pair of elastic bags (lungs). Blood circulatory system is related to hydraulic system.