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.
It is this hormone progesterone that can affect your digestive system by delaying the transit time of food through the intestines and hence may lead to constipation before your period. Usually though, you should find that the period-related constipation eases with the start of menstruation.
Yes: Although there are many causes of constipation including hypothyroidism, changes in bowel habits should be a case of concern. If a polyp or others mass obstructs the lumen of the bowel, it can cause constipation. To rule out obstructive causes of constipation, a colonoscopy is recommended. ...Read more.