PubMed Health⌕ Search

Biomedical subjects

B L Palets

Publications and source records attributed to B L Palets.

13 recordsLinked to original sources
PubMed1983

[Mathematical model of baroreflex regulation of hemodynamics in the dog].

A non-linear mathematical model of dog hemodynamics regulation was developed including descriptions of the cardiovascular system, the arterial baroreflex and the Beinbridge reflex. Model calculated arterial and venous pressure, blood flow, and heart rate are in good agreement with experimental data.

Animals↗
PubMed1976

["Tracking" the magnitude of arterial pressure in the circulatory system].

Steady--state characteristics of arterial and venous pressure, cardiac output, total peripheral resistance, heart rate, and pumping heart capacity depending on blood volume change were studied in dogs under conditons of rest, exercises, light and deep narcosis. The tracking mean arterial pressure was found to be the main principle of hemodynamic regulation. In unanesthetized animals the tracking is based on heart regulation component mainly, while under light narcosis it is the vascular component. In deep narcosis it is the suppressed tracking principle: arterial pressure change is proportional to blood volume changes.

Anesthesia, General↗
PubMedDate not supplied

[Theoretical analysis of the efficacy of G suits during exposure to continuously increasing gravitational overloads].

A mathematical model of human circulation was employed to examine circulation responses to +GZ acceleration the value of which increased linearly at the rate 0.1 G/sec, using subjects having an anti-G suit on and sitting in a relaxed posture. It has been calculated that the anti-G suit can compensate as much as 83% of the increment of hydrostatic pressure in leg vessels and as much as 57% in abdominal vessels. The suit effect on resistance and capacity vessel properties makes an approximately equal contribution to an increase of the acceleration tolerance threshold. However the occlusion effect of the anti-G suit causes a significant increase of afterload.

Acceleration↗