Ejection Fraction is a measurement of how much blood a ventricle ejects with each heartbeat. It is most commonly discussed for the left ventricle in cardiovascular physiology and heart failure. It is used in diagnostic testing, risk stratification, and longitudinal monitoring. It is typically reported on echocardiography, but can also be assessed by cardiac magnetic resonance imaging and other modalities.

Stroke Volume is the amount of blood the heart ejects from a ventricle with each heartbeat. It is a core cardiovascular physiology concept used to describe pumping performance and hemodynamics. It is commonly discussed in heart failure, shock, valvular disease, and perioperative or critical care monitoring. It is also used when interpreting echocardiography, cardiac magnetic resonance imaging, and invasive catheter-based measurements.

Cardiac Output is the volume of blood the heart pumps per minute. It is a core cardiovascular physiology concept used in hemodynamics and acute care. It links bedside findings to conditions like shock and heart failure. It is commonly estimated or measured using echocardiography and invasive monitoring in selected patients.

Inferior Vena Cava is the large vein that returns deoxygenated blood from the lower body to the heart. It is a core anatomy and physiology concept in cardiology, critical care, and vascular medicine. It is commonly discussed in volume assessment, venous thromboembolism, and imaging interpretation. It is also relevant in procedures that use central venous access, filters, or venous cannulation.

The Superior Vena Cava is a large central vein that returns deoxygenated blood to the heart. It is a core concept in cardiovascular anatomy and cardiopulmonary physiology. It is frequently discussed in acute care, imaging, central venous access, and cardiothoracic surgery. It becomes clinically important when it is obstructed, compressed, or used as a route for devices.

Pulmonary Vein refers to the veins that carry oxygenated blood from the lungs to the left atrium. It is a core cardiac anatomy concept used in physiology, imaging, electrophysiology, and congenital heart disease. Clinicians discuss the Pulmonary Vein when evaluating left-sided filling, atrial rhythm disorders, and pulmonary venous obstruction. It is commonly referenced in echocardiography, cardiac computed tomography (CT), cardiac magnetic resonance (CMR), and catheter-based procedures.

The Pulmonary Artery is the large blood vessel that carries deoxygenated blood from the right ventricle to the lungs. It is a core structure in cardiovascular anatomy and cardiopulmonary physiology. It is commonly discussed in conditions such as pulmonary hypertension, pulmonary embolism, and congenital heart disease. It is also central to hemodynamic assessment in critical care and cardiology.

The Aortic Arch is the curved segment of the thoracic aorta between the ascending aorta and the descending aorta. It gives rise to major arteries that supply the head, neck, and upper limbs. It is a core topic in cardiovascular anatomy and in diseases such as aneurysm and dissection. It is commonly assessed in imaging (computed tomography angiography, magnetic resonance angiography, echocardiography) and in cardiothoracic surgery and endovascular therapy.

The Descending Aorta is the portion of the aorta that carries oxygenated blood downward from the aortic arch toward the abdomen and legs. It is a core anatomy concept in cardiology, cardiothoracic surgery, and vascular medicine. It is frequently discussed in aortic disease, trauma, and blood pressure–related risk. It is commonly assessed with computed tomography angiography (CTA), magnetic resonance angiography (MRA), echocardiography, and catheter-based angiography.

The Ascending Aorta is the first segment of the aorta as it exits the left ventricle. It begins at the aortic root near the aortic valve and continues to the aortic arch. It is a core topic in cardiovascular anatomy and thoracic aortic disease. It is commonly assessed in echocardiography, computed tomography (CT), and magnetic resonance imaging (MRI).