منابع مشابه
Problems of Pulmonary Circulation
This small book consists of a series of papers dealing with various aspects of hemodynamics in the macro-circulation of the lungs. The papers have little to say about the micro-circulation or the structure of the vessels themselves. Each paper is followed by a spirited discussion which proves to be a salubrious force against bias. The study group includes some of the most able and experienced i...
متن کاملPulmonary circulation at exercise.
The pulmonary circulation is a high-flow and low-pressure circuit, with an average resistance of 1 mmHg/min/L in young adults, increasing to 2.5 mmHg/min/L over four to six decades of life. Pulmonary vascular mechanics at exercise are best described by distensible models. Exercise does not appear to affect the time constant of the pulmonary circulation or the longitudinal distribution of resist...
متن کاملPulmonary circulation and ventilation.
The pulmonary circuit receives the whole of the cardiac output, and the flow through it is governed by events in the systemic circulation. Its function is gaseous exchange, and the low resistance and high capacitance of the circuit is subservient to this function. Local flow is affected by intra-alveolar oxygen tensions and regional flow by passive hydrostatic effects due to gravity. The distri...
متن کاملRegulation of the pulmonary circulation.
Factors regulating pressure and flow in the lungs are reviewed with particular emphasis on their role in regulating blood flow velocity and distribution within the lung capillaries. The behaviour of the pulmonary arterial, system, alveolar capillaries, and pulmonary venous system are considered individually. The effect of heart disease on lung capillary blood flow is examined.
متن کاملStudies of the Pulmonary Circulation
The question of whether or not the blood-vessels of the pulmonary circulation are under the control of the central nervous system has been a subject for difference of opinion for many years. Several years ago I published ( I ) the results of some experiments bearing upon this problem, which led me to a belief in the existence of a vasomotor supply to the lesser circulation. Since then I have ca...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The American Journal of the Medical Sciences
سال: 1962
ISSN: 0002-9629
DOI: 10.1097/00000441-196208000-00029