Venule The smallest veins in the human body are called venules. The wall structure of this vein/venule is similar to that of the capillary, but the diameter is much larger (10-30 micrometers). A venule has no muscle layer. Often the wall of a venule is not completely sealed, there are no connections between the individual … Venule | Vein
Varicose veins (varices) Varicose veins can have various causes. On the one hand, the vein wall can be very weak in the case of congenital weakness, on the other hand the vein wall can become weaker due to heavy strain (a lot of standing without movement, obstruction of the blood flow for example due to … Varicose veins (varices) | Vein
Definition – What are blood pressure fluctuations? The term blood pressure fluctuations means that blood pressure takes on different values at different times. These can occur physiologically, i.e. naturally, as well as due to illness. Physiological blood pressure fluctuations include first- and second-order fluctuations. The former are the different blood pressure values during systole and … Blood pressure fluctuations
These are the symptoms I recognize from fluctuations in blood pressure Fluctuations in blood pressure can lead to a number of symptoms. Depending on the direction in which the blood pressure fluctuates, different sensations result. If the blood pressure is too high, this can lead to headaches or nosebleeds. However, these symptoms are more likely … These are the symptoms I recognize from fluctuations in blood pressure | Blood pressure fluctuations
Course of disease The course of the disease can vary depending on the cause of the blood pressure fluctuations. Physiological fluctuations in blood pressure, such as when breathing in and out, are not usually perceived. If the blood sinks into the legs after getting up, this can lead to a brief feeling of dizziness, as … Course of disease | Blood pressure fluctuations
The most common diseases of the aorta Atherosclerosis Aortic aneurysm Aortic dissection Aortic isthmus stenosis Marfan syndrome Aortic Arch Syndrome Takayasu arteritis Aortic rupture Aortic valve stenosis Aortic valve insufficiency Aortic aneurysm An aortic aneurysm is a congenital or acquired aneurysm of the vessel wall. A true aneurysm affects all wall layers. In contrast, a … Diseases of the aorta
Aortic valve stenosis Aortic valve stenosis is a clinical picture of the heart in which the aortic valve is narrowed. In medicine, it is often referred to as aortic stenosis. The causes of aortic valve stenosis vary with age. Most often, calcification of the valve occurs in older patients. If the stenosis occurs in younger … Aortic valve stenosis | Diseases of the aorta
Aortic Arch Syndrome Aortic arch syndrome is a narrowing of several or all branches of the aortic arch. The aortic arch itself can also be narrowed (stenosed). The main cause is vascular calcification. Sometimes an autoimmune disease (Takayasu arteritis) is also found as a cause. The symptoms depend on the degree and location of the … Aortic Arch Syndrome | Diseases of the aorta
Synonyms vena cava : vena cava Definition The vena cava (vena cava) is a large blood vessel that has the task of collecting blood in the body and returning it to the heart. It is divided into an upper and a lower part. The vena cava opens into the right atrium. Classification The vena cava … Vena cava
Function The vena cava has the task of collecting blood from the periphery of the body and returning it to the heart. It is also jointly responsible for filling the right heart. The pressure in the vena cava is between 0 and 15 mmHg. The pressure shows respiration-dependent and pulse-synchronous fluctuations, which is known as … Function | Vena cava
Diagnostics and therapy A catheter that is inserted into the vena cava (vena cava) up to the right atrium can be used in diagnostics to assess cardiovascular function (cardiovascular system). In addition to measuring this central venous pressure (CVD), the catheter is also used for infusion therapy, which supports infusion therapy through peripheral intravenous catheters. … Diagnostics and therapy | Vena cava
Definition Venous valves (valvulae) are structures in the veins that perform a valve-like function and thus prevent the blood from flowing back in the wrong direction. The wall of blood vessels is formed by three different layers. On the outside is the so-called tunica externa (adventitia), in the middle is the tunica media (media) and … Venous valve
