If you use it perfectly, the patch is 99% effective. But people aren't perfect, and it can be easy to make a mistake. so in reality, the patch is about 91% effective. That means about 9 out of 100 patch users get pregnant each year.
A.
(Kinda something that you should know, but hey i won't judge)
Cardiopulmonary bypass (CPB) provides a bloodless field for cardiac surgery. It incorporates an extracorporeal circuit to provide physiological support in which venous blood is drained to a reservoir, oxygenated and sent back to the body using a pump. Team effort between surgeon, perfusionist and anaesthesiologist is paramount for the successful use of CPB. However, it also has its share of complications and strategies to reduce these complications are the area of the current research. You can use a pump, Roller pump includes two rollers positioned on a rotating arm, which compress a length of tubing to produce forward flow.
Hope it helps
I think the answer is the cochlea and/or the vestibular system.
It depends on what you weigh and how much you sleep