Why do the ventricles contract upwards?

Is the main difference between respiration and fermenation is that fermenation does not use water? Can walking be harmful for back conditions? What is the rounded processes on the skull that articulate with the atlas? If you got spermed in three times in one day while on the shot could you still get pregnant? What are some symptoms of vitamin deficiency? Where can you buy maca root? What do ratcoons like to eat? Can hickeys mark an unborn child? What is the name of the small organism that may cause disease or rotting? Do you leave quietly leave a narcissist? Who saidhave lost a brace of kinsmen? Is desensitization possible for dog allergies? Does your belly button produce sweat? What are three ways to keep the digestive system in good shape? Are you lips the same color of your nipples? ICD 9 code for hypercapnic respiratory failure? Are there certain letters that people with a stutter can't say? When will a drowned body float? Where does blood pumped by the left ventricle pass through? Can a catch catch the flu from a human?