In this article we will discuss about:- 1. General Features of Cerebral Circulation 2. Regulation of Cerebral Blood Flow 3. Measurement. General Features of Cerebral Circulation: 1. Adult brain weighs 1400 gm (2% of body weight), 60% is composed of white matter, 40% is composed of grey matter. 2. Cerebral blood flow is 750 ml/min or 50-60 ml/ min/100 gm. [...]
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 [...]