Aortic plexus
aortic plexus
aortic plexus n.
a plexus of lymph nodes and connecting vessels lying along the lower portion of the abdominal aorta.
an autonomic plexus surrounding the abdominal aorta and continuous with the thoracic aortic plexus; abdominal aortic plexus.
an autonomic plexus surrounding the thoracic aorta and p-ssing with it through the aortic opening in the diaphragm to become continuous with the abdominal aortic plexus; thoracic aortic plexus.
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- Aortic ostium
aortic ostium aortic ostium n. the opening from the left ventricle of the heart into the ascending aorta, guarded by the aortic valve.
- Aortic septal defect
aortic septal defect aortic septal defect n. a small congenital opening between the aorta and pulmonary artery just above the semilunar valves. also called aorticopulmonary septal defect.
- Aortic sinus
aortic sinus aortic sinus n. the sp-ce between each semilunar valve and the wall of the aorta.
- Aortic stenosis
abnormal narrowing of the aorta, especially of its orifice, usually as a result of rheumatic fever or embryologic anomalies. historical examples aortic stenosis, the rarest of the valvular lesions, is practically always accompanied by high pressure picture. arteriosclerosis and hypertension: louis marshall warfield aortic stenosis n. pathological narrowing of the orifice of the aortic valve.
- Aortic valve
a semilunar valve between the aorta and the left ventricle of the heart that prevents the blood from flowing back into the left ventricle. contemporary examples even though he underwent an aortic valve replacement in 2008, he insists he has no intention of retiring anytime soon. jim lehrer’s cross-country fantasy sandra mcelwaine april 23, 2010 […]