Pulmonary Blood Flow and Venous Return During Spontaneous Respiration | Zendy

Gerhard A. Brecher | Zendy; Charles A. Hubay | Zendy

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Pulmonary Blood Flow and Venous Return During Spontaneous Respiration

Author(s) -

Gerhard A. Brecher,

Charles A. Hubay

Publication year - 1955

Publication title -

circulation research

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 4.899

H-Index - 336

eISSN - 1524-4571

pISSN - 0009-7330

DOI - 10.1161/01.res.3.2.210

Subject(s) - venous return curve , expiration , medicine , respiration , blood flow , venous blood , cardiology , vascular resistance , anesthesia , hemodynamics , respiratory system , anatomy

During normal spontaneous inspiration pulmonary blood flow increases in spite of an increase in resistance to flow in the pulmonary bed. The enhancement of pulmonary flow is caused by an augmentation of venous return due to thoracic aspiration. The right heart acts as a moderator for the pulmonary flow by temporarily storing part of the large influx of venous blood during inspiration and ejecting the stored part during expiration and the expiratory pause.

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