birth control pills are a popular form of contraception for women. how do birth control pills prevent pregnancy?a;by covering th
e cervix and blocking sperm from entering the uterusb; by blocking the fallopian tubes and keeping the eggs from reaching the uterusc; by introducing female hormones that prevent the ovaries from releasing eggs
Mitral stenosis causes reduced blood flow through the narrowed valve opening from the left atrium to the left ventricle. As a result, the volume of blood bringing oxygen from the lungs is reduced. This can make you feel tired and short of breath.
