Photoplethysmography a simple optical technique used to detect volumetric changes in blood in the peripheral circulation.
Photoplethysmography is a technique used in signal analysis and application.
This instrument is a simple optical technique used to detect volumetric changes in blood in the peripheral circulation.
This technique provides valuable information related to our cardiovascular system
learn more on photoplethysmography here; https://brainly.com/question/25770607