English: This is a prototypical output of a 'en:spirometer'. The vertical axis signifies the en:volume and the horizontal axis signifies en:time. The bottom left corner equals zero lung volume at the start of the spirometer recording session. The first small en:amplitude part of the en:sinusoid depicts repeated resting state involuntary breathing. The amplitude of this small sinusoid corresponds to the 'Tidal Volume'. The large positive amplitude spike represents voluntary inspiration to maximal volume or 'Total Lung Volume'. The large negative amplitude spike represents forced expiration to the lowest possible en:physiological lung volume called 'Residual Volume'.
All of the en:lung volumes commonly referred to in the literature are labeled.
This work has been released into the public domain by its author, Vihsadas. This applies worldwide.
In some countries this may not be legally possible; if so: Vihsadas grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
Being somewhat adept at "nit-picking," I noted that the graphic on Lung Volume shows "VT" for Tidal Volume. Based on what I observe in the rest of the graphic, that graphic element should be, "TV."
Certainly, this is not a grievous error.
Original upload log
The original description page was here. All following user names refer to en.wikipedia.
2007-04-18 21:43 Vihsadas 935×323×8 (128701 bytes) This is a prototypical output of a 'spirometer'. The y-axis signifies the volume, with the bottom left corner equaling 'zero volume'. The sinusoid comes from repeated resting state breathing (small amplitude sinusoid) 'Tidal Volume', one inspiratory segme
2007-04-13 01:06 Vihsadas 836×327×8 (116712 bytes) This image was UPDATED using the original image that was posted here. Therefore it is fair usage. There is no copyright holder. The original owner of the image made the file and uploaded it here, I updated it with new information. Since it was already upl
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