How are the respiratory and circulatory systems similar?

The respiratory system is your lungs, and the oxygen and carbon dioxide circulate throughout the body. The circulatory system of the body is your blood vessels your blood flow stuff like that. It is similar because when you breath in the oxygen from the lungs goes into the bloodstream giving you the oxygen you need. When you exhale, all of the old air (Carbon dioxide) leaves the bloodstream and into the lungs then out your mouth. They work together in a rhythm so that you can stay healthy and maintain the air in your lungs.

There are a couple of answers.you could have an infection, a sti, std, or other problematic health issues.i would recommend going to the doctors, if not, take a shower and wash down there, then wait a couple of days, and if it’s still there, then is when you should go to the nearest or trusted gynecologist of your choice.