In the exchange of materials—the metabolism of food and oxygen, and the removal of waste—which goes on between the living tissues and the blood, the capillaries have an important part. Despite the recognition of this fact it cannot be said that the condition of the blood in the capillary...
1. see blood pressure. 2. pressure of blood on walls of any blood vessel. capillary pressure the blood pressure in the capillaries. central venous pressure see central venous pressure. cerebral perfusion pressure the mean arterial pressure minus the intracranial pressure; a measure of the adequacy...
ABBR: BP The tension exerted on the walls of arteries by: the strength of the contraction of the heart; the resistance of arterioles and capillaries; the elasticity of blood vessels; the blood volume; and blood viscosity. Normal blood pressure is defined as a systolic BP between 100 and 120...
1.Oxygen Transfer in the Pulmonary Capillaries and Flux and Pressure Distributions Along the Pulmonary Blood Circulatory System;肺毛细血流氧输运及肺血流压力、流量分布 2.Blood pressure is an indication of the resistance exerted by the peripheral vessels to the blood flow.血压表示周围血管对血流所产生的...
For example, blood pressure in the capillaries is usually about 20 to 30 mmHg, whereas the pressure in the large veins may become negative (lower than atmospheric pressure [760 mmHg at sea level]; technically, measurements of blood pressure are relative to atmospheric pressure, which represents ...
It was described histologically in 1918 by Spiegel [93]. The SFO is partly covered by the choroid plexus and has “a dense and intricate network of mostly fenestrated capillaries that places the SFO outside the blood-brain barrier and makes it readily accessible to blood-borne substances, ...
Chronic kidney disease (CKD) is an emerging disease worldwide. We investigated the relationship between blood pressure (BP) control and parafoveal retinal microvascular changes in patients with CKD. This case–control study enrolled 256 patients with CKD
Blood pressuremeans the pressure or tension force of the blood within against the systemic arteries, maintained by the contraction of the left ventricle, the resistance of the arterioles and capillaries, the elasticity of the arterial walls, as well as the viscosity and volume of the blood; expre...
Figure 1. Blood pressure is related to the blood velocity in the arteries and arterioles. In the capillaries and veins, the blood pressure continues to decease but velocity increases.The pressure of the blood flow in the body is produced by the hydrostatic pressure of the fluid (blood) ...
MaximItkinMD, ...DanielBurkhoffMD, PhD, inJournal of the American College of Cardiology, 2021 Pulmonary congestion Anatomically, the pulmonary lymphatic vessels begin at the alveoli (27). Pulmonarycapillary pressure(the main force responsible for efflux of fluid from the pulmonary capillaries) (Figur...