Definition & Betydelse | Engelska ordet AORTA

Definition av AORTA

1. aorta, stora kroppspulsådern

Exempel på hur man kan använda AORTA i en mening

• One way of classifying a part of the aorta is by anatomical compartment, where the thoracic aorta (or thoracic portion of the aorta) runs from the heart to the diaphragm.
• Afterload, the maximum effect of a heartbeat driving blood mass out of the heart into the aorta and pulmonary arteries.
• The most serious complications involve the heart and aorta, with an increased risk of mitral valve prolapse and aortic aneurysm.
• The aortic valve usually has three leaflets and is located between the left ventricle of the heart, and the aorta.
• These are the semilunar valves – the aortic valve at the aorta, and the pulmonary valve at the pulmonary artery.
• The aortic valve is a valve in the heart of humans and most other animals, located between the left ventricle and the aorta.
• Body tissues require continuous oxygen delivery which requires the sustained transport of oxygen to the tissues by systemic circulation of oxygenated blood at an adequate pressure from the left ventricle of the heart via the aorta and arteries.
• Aortic dissection (AD) occurs when an injury to the innermost layer of the aorta allows blood to flow between the layers of the aortic wall, forcing the layers apart.
• PGLs of the head and neck are typically parasympathetic and their sympathetic counterparts are predominantly located in the abdomen and pelvis, particularly concentrated at the organ of Zuckerkandl at the bifurcation of the aorta.
• Although they may occur in any blood vessel, particularly lethal examples include aneurysms of the circle of Willis in the brain, aortic aneurysms affecting the thoracic aorta, and abdominal aortic aneurysms.
• Aortic bifurcation, the point at which the abdominal aorta bifurcates into the left and right common iliac arteries.
• In vitro cultivation of muscle fibers was first performed successfully in 1971 when pathologist Russel Ross cultured guinea-pig aorta.
• The left coronary artery arises from the aorta within the left cusp of the aortic valve and feeds blood to the left side of the heart.
• The systemic pulse pressure is approximately proportional to stroke volume, or the amount of blood ejected from the left ventricle during systole (pump action) and inversely proportional to the compliance (similar to elasticity) of the aorta.
• Patent ductus arteriosus (PDA) is a medical condition in which the ductus arteriosus fails to close after birth: this allows a portion of oxygenated blood from the left heart to flow back to the lungs through the aorta, which has a higher blood pressure, to the pulmonary artery, which has a lower blood pressure.
• At the superior end, the ligamentum attaches to the aorta—at the final part of the aortic arch (the isthmus of aorta) or the first part of the descending aorta.
• The fetal lungs are collapsed, and blood passes from the right atrium directly into the left atrium through the foramen ovale (an open conduit between the paired atria) or through the ductus arteriosus (a shunt between the pulmonary artery and the aorta).
• The right main pulmonary veins (contains oxygenated blood) pass behind the right atrium and superior vena cava; the left in front of the descending thoracic aorta.
• The celiac plexus, also known as the solar plexus because of its radiating nerve fibers, is a complex network of nerves located in the abdomen, near where the celiac trunk, superior mesenteric artery, and renal arteries branch from the abdominal aorta.
• Aortic regurgitation (AR), also known as aortic insufficiency (AI), is the leaking of the aortic valve of the heart that causes blood to flow in the reverse direction during ventricular diastole, from the aorta into the left ventricle.

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