Plethysmograph
(Redirected from Body plethysmography)
Plethysmograph
A Plethysmograph is an instrument used to measure changes in volume within an organ or whole body that result from fluctuations in the amount of blood or air it contains. It operates by measuring the changes in girth of the body part under examination and is often used in medical and physiological testing.
History[edit | edit source]
The plethysmograph was first described by Jean Leonard Marie Poiseuille in 1834. It was initially used to measure the volume of blood passing through the body part under examination. The device has since been refined and modernized, and is now used in a variety of medical and physiological tests.
Types[edit | edit source]
There are several types of plethysmographs, including:
- Body plethysmograph: This type of plethysmograph is used to measure changes in the volume of the entire body. It is often used in tests to measure lung volume.
- Limb plethysmograph: This type of plethysmograph is used to measure changes in the volume of a limb. It is often used in tests to measure blood flow.
- Penile plethysmograph: This type of plethysmograph is used to measure changes in the volume of the penis. It is often used in tests to measure sexual arousal.
Uses[edit | edit source]
Plethysmographs are used in a variety of medical and physiological tests, including:
- Pulmonary function testing: Plethysmographs are often used in tests to measure lung volume and air flow.
- Vascular testing: Plethysmographs are often used in tests to measure blood flow and detect vascular diseases.
- Sexual behavior assessment: Plethysmographs are often used in tests to measure sexual arousal and assess sexual behavior.
See also[edit | edit source]
References[edit | edit source]
External links[edit | edit source]
| Plethysmograph Resources | |
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