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 passing 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 space 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.



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