The right ventricle then pumps blood through the pulmonary artery into the lungs. 4. In the lungs, tiny blood vessels called capillaries absorb carbon diox-ide from the blood and replace it with oxygen. 5. Oxygenated blood then flows through the pulmonary vein and into the left atrium. 6.
Also have a read of 'Natural remedies for constipation' by herbalist Megan - she describes some more natural ways to ease and relieve constipation, all of which can be applied during your period. Images from Madison.k12.wi.us, FoxNews.com and Live-Pure.com.
1 Ignoring an urge to have a bowel movement can lead to constipation. 2  Some people prefer to have bowel movements at home. 3  But holding in a bowel movement can cause constipation if the delay is too long. 4  Medical conditions. 5  Some problems, like stroke, diabetes, or a blockage in the intestines, can cause constipation.