It is defined as a clinical condition which is characterized by narrowing of blood vessels due to excess contraction of muscular wall of the vessels. The medicine that causes constriction of blood vessels is known as vasoconstrictors. Generally vasoconstrictors are given to increase the blood pressure. Vasoconstriction occurs due to the high concentration of calcium in vascular smooth muscle.A journal is a periodical publication intended to further progress of science, usually by reporting new research. Most journals are highly specialized, although some of the oldest journals publish articles, reviews, editorials, short communications, letters, and scientific papers across a wide range of scientific fields. Journals contain articles that peer reviewed, in an attempt to ensure that articles meet the journal's standards of quality, and scientific validity. Each such journal article becomes part of the permanent scientific record.
Last date updated on April, 2024