The Bureau of Labor Statistics (BLS) is an agency of the U.S. Department of Labor that has been in operation since 1884. According to its official website, the vision of the BLS is to meet the information needs of a rapidly changing U.S, and global economy by continuously improving its products and services, investing in its work force, and modernizing its business processes.
Note: Scar tissue may interfere with normal intrapartal cervical dilation and effacement. Vaginal bleeding other than slight spotting may be sign of cervical dilatation. Leaking membranes may herald impending delivery and place client at greater risk for infection.
Just as important as vasoconstriction is vasodilation. One way the body can cause blood vessels to dilate is to simply stop producing vasoconstricting signals. If the smooth muscle cells are not told to contract, the blood vessels swell and dilate.