منابع مشابه
Syphilis of the Circulatory System
1 hough universally recognised as a very potent factor in the causation of certain wellknown diseases such as aneurysm, Stokes Adams' syndrome, certain forms of meningitis, hemiplegia, etc., syphilis of the circulatory system is not by any means universally understood by the medical profession. It is, therefore, a great pleasure to read the lucid exposition of the subject by Dr. Ivy Mackenzie, ...
متن کاملCentral circulatory responses in normotensive and hypertensive pregnancy.
Haemodynamic responses in normotensive pregnancy in the antenatal phase show that cardiac output is elevated by the end of the first trimester, and remains elevated throughout pregnancy, although it may fall very slightly at the end of the third trimester of pregnancy. Heart rate remains virtually static throughout pregnancy, although it may fall very slightly at the end of the third trimester ...
متن کاملCirculatory changes during pregnancy in spontaneously and renal hypertensive rats.
1. Mean arterial pressure, heart rate, cardiac output (dye-dilution technique), stroke volume, total peripheral resistance (TPR), utero-placental blood supply (microsphere technique) and foetal weights were determined 2 days before expected birth in normotensive control (NC) rats, spontaneously hypertensive (SH) rats, rats with short-standing renal hypertension induced early in pregnancy and ra...
متن کاملA closed circulatory system model.
The model to be described is a “closed” system, comprised of four principal components : a pump, an arterial capacitance, a peripheral resistance, and a venous capacitance. The pump is servo-controlled, such that “cardiac output” is a function of venous pressure (FrankStarling mechanism). Also, because the model is a closed system, the venous pressure is a function of the cardiac output. The mo...
متن کاملNumerical Analyses And Researches Of The Human Greater Circulatory System
The paper presents examinations of human’s greater part of the circulatory system, modeled as an electric net. The similarities between human’s greater circulation and the electric model have been evolved. The analysis of the greater circulation was performed in PSPICE – an environment of electric circuits modeling. The designed model allows to analyze human’s greater circulation in physiologic...
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ژورنال
عنوان ژورنال: American Journal of Obstetrics and Gynecology
سال: 1921
ISSN: 0002-9378
DOI: 10.1016/s0002-9378(21)90626-4