The subclavian vein, also called the subclavian vein, runs behind the collarbone above the first rib. It carries blood from the arm toward the heart. What is the subclavian vein? The subclavian vein is one of the veins of the small systemic circulation in the arm and neck. A distinction is made between the right … Subclavian Vein: Structure, Function & Diseases
Diastole is the relaxation phase of the heart muscle during which blood flows from the atria into the ventricles during the early filling phase when the leaflet valves are open. In the subsequent late filling phase, further blood is actively delivered to the ventricles by contraction of the atria. In the systole that follows, blood … Diastole: Function, Tasks, Role & Diseases
Blood flow is the movement of blood in the body’s circulatory system. Blood flow is influenced by various conditions in the body. What is blood flow? Blood flow is understood as the movement of blood in the body’s circulatory system. Blood is a fluid of the body that consists of special blood cells and liquid … Blood Flow: Function, Tasks, Role & Diseases
A blood vessel is a tubular structure used to transport blood. The vessel is also called a vein and is found only in the human and animal body. What are blood vessels? The totality of blood vessels, together with the heart, forms the circulatory system. This is essential for the circulation of blood to supply … Blood Vessels: Structure, Function & Diseases
Stenosis comes in different forms that can affect a variety of different areas of the human body. Causes of stenosis include inflammation, tumors, and even arteriosclerosis. The best-known stenoses in this regard are ear canal stenosis, pyloric stenosis, aortic valve stenosis, carotid stenosis and coronary stenosis. Ear canal stenosis Auditory canal stenosis is a narrowing … Stenosis: Causes, Symptoms & Treatment
As a branch of the facial artery, the angular artery supplies the ocular ring muscle, lacrimal sac, and orbital and infraorbital regios. Arterial damage, such as that caused by aneurysm and/or embolism, can lead to necrosis of the affected tissue. What is the angular artery? The angular artery represents a branch of the facial artery … Angular Artery: Structure, Function & Diseases
The paired facial artery arises as the third major branch of the external carotid artery and supplies large portions of the surface structures of the face, including the nose, lips, and tongue. The facial artery takes a conspicuously tortuous course and exhibits multiple branches to supply the entire area with oxygenated blood from the pulmonary … Facial Artery: Structure, Function & Diseases
The femoral artery represents the extension of the external iliac artery and serves to supply the lower extremity. Four English vessels and the profunda femoris artery, the deep femoral artery, branch from the artery with a cross-sectional area similar to that of the femoral artery. Because the artery runs close to the skin surface, it … Femoral Artery: Structure, Function & Diseases
Truncus arteriosis communis is the name given to a very rare heart defect in newborns caused by incomplete separation of the pulmonary arterial trunk from the arterial trunk of the systemic circulation. The aorta and pulmonary artery arise in a common trunk, resulting in mixing of the oxygen-depleted arterial blood of the pulmonary circulation with … Truncus Arteriosus Communis: Causes, Symptoms & Treatment
The brachiocephalic truncus is a right vascular branch of the aorta and supplies portions of the brain in addition to the neck and right arm. Like any artery, the truncus carries blood rich in oxygen, nutrients, and messengers. Vascular diseases such as arteriosclerosis can affect the brachiocephalic truncus and require surgical intervention. What is the … Truncus Brachiocephalicus: Structure, Function & Diseases
The truncus coeliacus is an unpaired arterial trunk that arises anteriorly toward the abdomen (ventrally) from the abdominal portion of the aorta still above the paired renal arteries. It branches after a few centimeters into three other arteries that supply arterial, oxygenated blood to various abdominal organs as well as part of the mesentery. Because … Truncus Coeliacus: Structure, Function & Diseases
The two heart valves that respectively connect the left atrium to the left ventricle and the right atrium to the right ventricle are called leaflet valves for anatomical reasons. The two leaflet valves function according to the recoil principle and, together with the other two heart valves, which are so-called semilunar valves, ensure orderly blood … Sail Valve: Structure, Function & Diseases
