Removal of the radial artery (for what, how does it work?) A removal of the radial artery can be performed as part of a bypass operation. Bypass surgery is used to bridge a narrowing of the coronary arteries. If the coronary vessels no longer allow enough blood to pass through, the heart muscles may be … Removal of the radial artery (for what, how does it work?) | Radial artery
Anatomical course Along the spoke (radius) it runs on the front of the forearm under the brachioradialis muscle. In its course it is accompanied by a superficial branch of the radial nerve. It is easy to palpate in the foveola radialis (Tabatière). This is limited by the tendons of the Musculus extensor pollicis longus and … Radial artery
General information Three different arteries are conventionally known as the carotid artery. The first is the large common carotid artery and the two arteries that emerge from it, the internal carotid artery and the external carotid artery. Common carotid artery The arteria carotis communis, also known as “carotid artery” or carotid artery, is the common … Carotid artery
External carotid artery The external carotid artery supplies the soft tissues and bones of the skull, as well as the throat, larynx, thyroid and the hard meninges. It emerges at the carotid bifurcation from the arteria carotis communicans and is usually the smaller artery of the two carotid arteries. It is usually located in front … External carotid artery | Carotid artery
Stenosis of the carotid artery A narrowing or blockage of a part of the internal carotid artery can usually occur for two reasons. Either a blood clot has detached and led to an embolism (vascular occlusion) or the vessel has undergone arteriosclerotic changes and over time a thrombus has formed at this site. Most blood … Stenosis of the carotid artery | Carotid artery
Synonyms blood vessel, veins, body circulation A vein is a blood vessel containing blood that flows towards the heart. In the major circulation of the body, blood that is always low in oxygen flows through the veins, whereas in the pulmonary circulation, blood that is always rich in oxygen flows from the lungs to the … Vein
Venous return flow In contrast to the arteries, the veins have a low pressure. This means that the blood from parts of the body that lie below the heart level cannot be pumped back to the heart against gravity as easily. To facilitate this venous return, all large veins below the heart level have venous … Venous return flow | Vein
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 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
Introduction The term venule refers to a section of blood vessels in the body’s vascular system which, together with the arterioles and capillaries, form the final flow path of the vascular system. The function of the venule includes the exchange between blood and tissue and the transport of blood as part of the vascular system. … Venole
Difference between a venule and an arteriole An arteriole is also a component of the final flow path of the vascular system and resembles an artery in its wall structure. The arteries generally have a larger and more compact muscle layer than the veins. The arterioles form the resistance vessels in the body’s circulation and … Difference between a venule and an arteriole | Venole
