Results 261 to 270 of about 626,505 (317)
Some of the next articles are maybe not open access.
The Control of the Cerebral Circulation
JAMA, 1961The cerebral circulation is broadly limited by factors extrinsic to the brain, namely the general arterial blood pressure and the cardiac output. The cerebral blood flow will be maintained until the cardiac output is decreased by more than a third or the blood pressure is lowered to half or less of the normal value.
H A, SHENKIN, P, NOVACK
openaire +2 more sources
Therapeutic control of the circulation
Journal of Clinical Monitoring and Computing, 2008By regarding the circulation from the perspective of the venous return, continuous therapeutic control of the mean arterial blood pressure, cardiac output and tissue oxygen flow can be seen to be the consequence of a series of equations based on conventionally measured variables.
William Geoffrey, Parkin +1 more
openaire +2 more sources
Reflex control of circulation in the elderly
Cardiovascular Drugs and Therapy, 1991Baroreceptor control of heart rate is markedly reduced in elderly subjects. However, the effects of aging on baroreceptor control of blood pressure and on the vascular and neurohumoral influences of volume cardiopulmonary receptors are unknown. In this paper we report evidence that in both conscious rats and humans aging is associated with a fall in ...
Mancia, G +5 more
openaire +3 more sources
Control of circulation in insects
General Pharmacology: The Vascular System, 19971. Studies on the physiology of insect circulation have revealed that the insect central nervous system can exert a strong nervous control over certain dorsal vessels and diaphragms. 2. The function of neurohormonal control over the heartbeat of insects, though demonstrated, is less clear.
openaire +2 more sources
Pharmacological Control Of The Cerebral Circulation
Annual Review of Pharmacology and Toxicology, 1991This review is about control of a physiological variable; what that variable's function is and how it is regulated must be discussed first to establish a rational basis for its controL The reader is referred to some excellent recent reviews on regulation of cerebral blood flow (CBF)1 (1-3).
openaire +2 more sources
1987
This symposium focuses on the mechanics of heart muscle contraction, ventricular pump function, and central hemodynamics. Therefore, despite the title, this chapter confines itself to discussions on the mechanical interactions between the heart and the vasculature with special reference to physiological optimizations of their coupling.
Kiichi Sagawa +3 more
openaire +1 more source
This symposium focuses on the mechanics of heart muscle contraction, ventricular pump function, and central hemodynamics. Therefore, despite the title, this chapter confines itself to discussions on the mechanical interactions between the heart and the vasculature with special reference to physiological optimizations of their coupling.
Kiichi Sagawa +3 more
openaire +1 more source
On the Controllability Properties of Circulant Networks
IEEE Transactions on Automatic Control, 2013This paper examines the controllability of a group of first order agents, adopting a weighted consensus-type coordination protocol over a circulant network. Specifically, it is shown that a circulant network with Laplacian eigenvalues of maximum algebraic multiplicity q is controllable from q nodes.
Marzieh Nabi-Abdolyousefi +1 more
openaire +1 more source
Control of renal circulation in the fetus
American Journal of Obstetrics and Gynecology, 1972Abstract The effect of aortic chemoreceptor stimulation on renal circulation was studied in mature fetal lambs. A cesarean section was performed with the use of chloralose anesthesia, and the fetus was delivered with the umbilical circulation intact.
J T, Dunne, J E, Milligan, B W, Thomas
openaire +2 more sources
Nervous Control of the Pulmonary Circulation
Annual Review of Physiology, 1980Dr. Bayliss' statement implied that responses to adrenaline may be taken as sufficient evidence for sympathetic innervation and hence for autonomic control of the pulmonary vessels. In the ensuing decades detailed anatomi· cal studies of the pulmonary nerve supply clearly demonstrated that the pulmonary vascular bed is indeed well innervated by a ...
S E, Downing, J C, Lee
openaire +2 more sources
Reflex control of the peripheral circulation
Progress in Cardiovascular Diseases, 1976T HE purpose of the circulation is perfusion of tissues, and the major role of blood vessels in determining tissue perfusion must be appreciated. Knowledge of cardiovascular reflexes and neurohumoral control of the peripheral circulation has exploded in recent years.
F M, Abboud +3 more
openaire +2 more sources