Marey-style pneumograph.

(Pneumograph nach Marey.)
Description: Device for indicating movements of the breast due to breathing. It is mounted on a spring plate which, when the breath is expired, returns to its original position. (Expanded caption Copyright 1998, Edward J. Haupt)
(Source: Langendorff, Physiologische Graphik, p. 232.)
Source of illustration: Zimmermann, E. (1903). XVIII. Preis- Liste über psychologische und physiologische Apparate (p. 93). Leipzig: Eduard Zimmermann.

DESCRIPTORS:
Type: Component
Stimulus: Lung moion
System: Pulmonary
Output: Chest volume

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