The innermost coating or membrane of a part or organ, especially of a vein or artery.
- ‘Prevention and treatment of endothelium-related arterial thrombosis Endothelial cells, connective tissue, and elastic tissue form the tunica intima of the arterial wall.’
- ‘The arteries were most susceptible, with bruising of the intima and adventitia and separation of the media from the vessel walls.’
- ‘By 20 years of age, all humans, regardless of race or gender, develop focal thickening of the intima of medium-sized arteries.’
- ‘Atheroma is a discrete plaque containing lipid deposits that arises in the intima of an artery and has a predilection for areas of tortuosity and turbulence of blood flow.’
- ‘Dissection refers to a tear or defect in the intima of the aorta which allows blood to enter the media, separating it into two layers.’
Late 19th century: shortening of modern Latin tunica intima innermost sheath.