The cardiac septum separates the right side of the heart from the left side. A distinction can be made between a ventricular and an atrial septum. What is the cardiac septum? The cardiac septum is also known as the septum or cardiac septum in medical terminology. It separates the atrium and ventricle of the left … Cardiac Septum: Structure, Function & Diseases
Heart rate is the number of heartbeat cycles per minute, and a heartbeat cycle, also called cardiac action, includes the beating phases of systole and diastole. Systole refers to the contraction of the ventricles including blood ejection phase and diastole refers to the resting phase of the ventricles with simultaneous contraction of the atria and … Heart Rate: Function, Tasks, Role & Diseases
The mediastinum corresponds to a tissue space of the thoracic cavity that houses all thoracic organs except the lungs. The organs are embedded within the mediastinum in connective tissue, which maintains their shape and performs supportive as well as protective functions. The mediastinum often becomes clinically relevant due to mediastinal tumors, which can displace the … Mediastinum: Structure, Function & Diseases
Desmosine is a proteinogenic amino acid. Together with other amino acids, it forms the fiber and structural protein elastin. In mutations in the ELN gene, the structural formation of elastin is impaired. What is desmosine? Amino acids are an important component of the human organism. They are a class of organic compounds formed from at … Desmosine: Function & Diseases
The abdominal aorta is the descending portion of the large body artery below the thoracic aorta. The abdominal aorta begins at the level of the diaphragmatic hernia and extends to branch into the two major iliac arteries at the level of the fourth lumbar vertebra. The two larger renal arteries and a number of smaller … Abdominal Aorta: Structure, Function & Diseases
The aortic arch is effectively a 180-degree elbow of the body’s aorta, transferring the nearly vertical upward ascending aorta to the nearly vertical downward descending aorta. The aortic arch lies just outside the pericardium above the origin of the ascending aorta, which originates in the left ventricle. Three arteries or arterial trunks branch from the … Aortic Arch: Structure, Function & Diseases
Aortic dissection is the detachment of the inner wall layer of the aorta, the intima, from the middle wall layer known as the media. In most cases, aortic dissection originates from an injury or tear to the intima, which forms the portal of entry for hemorrhage. The hemorrhage can lead to widening of the dissection … Aortic Dissection: Causes, Symptoms & Treatment
Aortic isthmic stenosis is a congenital heart defect. It involves a narrowing of the aorta. What is aortic isthmic stenosis? Aortic isthmic stenosis (coarctatio aortae) is the second most common type of congenital heart defect. In this case, a luminal narrowing of the aorta (main artery) occurs in the region of the aortic isthmus (isthmus … Aortic Isthmus Stenosis: Causes, Symptoms, & Treatment
The aortic valve is one of four heart valves or one of two so-called leaflet valves. It is located at the exit of the left ventricle into the aorta. The aortic valve opens during systolic contraction of the left ventricle and allows ejection of blood from the ventricle into the aorta, the beginning of the … Aortic Valve: Structure, Function & Diseases
A vascular prosthesis is an implant that replaces natural blood vessels. It is mainly used for chronic vasoconstriction, bypass surgery or severe vasodilatation. What is a vascular prosthesis? A vascular prosthesis is an implant that replaces natural blood vessels. It is used primarily for chronic vasoconstriction (see illustration), bypass surgery, or severe vasodilatation. A vascular … Vascular Prosthesis: Treatment, Effect & Risks
The vena cava is the name given to the two large veins, the superior vena cava (superior vena cava) and the inferior vena cava (inferior vena cava), in which the blood of the large systemic circulation is collected and directed to the right atrium in the common inflow sinus venarum cavarum. These are the two … Vena Cava: Structure, Function & Diseases
Definition When we talk about capillaries (hair vessels), we usually mean the blood capillaries, although we must not forget that there are also lymph capillaries. Blood capillaries are one of three types of vessels that can be distinguished in humans. There are the arteries that transport the blood away from the heart and the veins … Capillary
