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Pathophysiology is a study which explains the function of the body as it relates to diseases and conditions. The pathophysiology of hypertension is an area which attempts to explain mechanistically the causes of hypertension, which is a chronic disease characterized by elevation of blood pressure. Hypertension can be classified by cause as ...
The major determinant of vascular resistance is small arteriolar (known as resistance arterioles) tone. These vessels are from 450 μm down to 100 μm in diameter (as a comparison, the diameter of a capillary is about 5 to 10 μm). Another determinant of vascular resistance is the pre-capillary arterioles.
Identifying the symptoms of hypertensive heart disease. Symptoms vary depending on the severity of the condition and progression of the disease. You may experience no symptoms, or your symptoms ...
Cardiovascular physiology. Cardiovascular physiology is the study of the cardiovascular system, specifically addressing the physiology of the heart ("cardio") and blood vessels ("vascular"). These subjects are sometimes addressed separately, under the names cardiac physiology and circulatory physiology. [1]
The vasomotor center ( VMC) is a portion of the medulla oblongata. Together with the cardiovascular center and respiratory center, it regulates blood pressure. [1] It also has a more minor role in other homeostatic processes. [citation needed] Upon increase in carbon dioxide level at central chemoreceptors, it stimulates the sympathetic system ...
The circulatory system works thanks to constant pressure from the heart and valves throughout the body. This pressure ensures that veins carry blood to the heart and arteries transport it away ...
The heart has three layers. They are the: Epicardium: This thin membrane is the outer-most layer of the heart. Myocardium: This thick layer is the muscle that contracts to pump and propel blood ...
Pulmonary embolism: A blood clot to the lungs typically occurs suddenly. Shortness of breath, chest pain (often worse with deep breaths), and a rapid heart rate are common symptoms. Pulmonary ...
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