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 [...]
In this article we will discuss about the changes that take place in the fetal circulation of blood at birth: 1. Primary Changes in Pulmonary and Systemic Vascular Resistance 2. Closure of the Foramen Ovale 3. Closure of the Ductus Arteriosus 4. Closure of the Ductus Venosus. 1. Primary Changes in Pulmonary and Systemic Vascular Resistance: First, loss of the [...]