Synonym: vasospasm. ... Origin: angio-+ G. Hyper, over, + tonos, tension ... (05 Mar 2000) ... 
Type: Term Pronunciation: an′jē-ō-hī′per-tō′nē-ă Synonyms: vasospasm
angiohypertonia Also known as vasospasm, the sudden decrease in the internal diameter of a blood vessel that results from contraction of smooth muscle within the wall of the vessel. This causes a decrease in blood flow, but an increase in systemic vascular resistance. Also known as, vasoconstriction.