The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.
Did you know?
Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
Did you know?
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
Did you know?
There are 60,000 miles of blood vessels in every adult human.
Barrel Chest for Patients who have COPD
Scientific monitoring with environmental policy (SOER)
Fully Boned Pork Loin
Cutting a Pocket in Pork Chops
Trimming a Pork Tenderloin
The executive legislative "struggle" over foreign policy