Aneurysm, saccular: An aneurysm that resembles a small sack. A berry aneurysm is typically saccular.
- Aneurysm, thoracic
Aneurysm, thoracic: An aneurysm situated within the thorax (chest). See: Aneurysm, aortic. An aneurysm is a localized widening (dilatation) of an artery, vein, or the heart. At the area of an aneurysm, there is typically a bulge and the wall is weakened and may rupture. The word “aneurysm” comes from the Greek “aneurysma” meaning “a […]
- Aneurysmal bruit
Aneurysmal bruit: A blowing sound heard over an aneurysm, a widening of a vessel. Bruit is French for noise.
- Angelman syndrome
An important genetic syndrome characterized by severe motor and intellectual retardation, microcephaly (abnormally small head), ataxia, frequent jerky limb movements and flapping of the arms and hands, hypotonia (floppiness), hyperactivity, seizures, absence of speech, frequent smiling and outbursts of laughter, and an unusual facies (facial appearance) characterized by macrostomia (large mouth), a large jaw and […]
Anger: An emotional state that may range in intensity from mild irritation to intense fury and rage. Anger may have physical effects such as raising the heart rate, blood pressure and the levels of adrenaline and noradrenaline.
Angiitis: Inflammation of the walls of small blood vessels. Also known as vasculitis.