In this article we will discuss about the features and measurement of coronary blood flow in humans. Features of Coronary Blood Flow: The following summarizes important features of coronary blood flow: i. Flow is tightly coupled to oxygen demand. This is necessary because the heart has very high basal oxygen consumption (8-10 ml O2/min/100 g) and the highest A-VO2 difference [...]
In this article we will discuss about the mechanisms of blood circulation in humans:- 1. Coronary Circulation 2. Cerebral Circulation 3. Microcirculation 4. Pulmonary Circulation 5. Fetal Circulation 6. Splanchnic Circulation 7. Intestinal Circulation. 1. Coronary Circulation: Coronary circulation is the circulation of blood in the blood vessels of the heart muscle (myocardium). Normal coronary blood flow at rest is [...]
In this article we will discuss about:- 1. Characteristics of Pulmonary Circulation 2. Pressures in the Pulmonary System 3. Factors 4. Measurement. Characteristics of Pulmonary Circulation: 1. The entire pulmonary vascular system is a distensible low pressure system. 2. Reservoir: Because of their distensibility, the pulmonary veins act as an important blood reservoir. The volume of blood at any one [...]