the study of the anatomy, normal functions, and disorders of the heart. The medical field dedicated to diagnosing and treating diseases of the heart and cardiovascular system. See Interventional cardiology, Nuclear cardiology.. APC, or atrial premature complex (or beat) is a beat that arise in the atria of the heart from outside the normal mechanism of heartbeats. It's very common and doesn't portend any bad prognosis. It increase with age, smoking, coffee intake, alcohol intake, and stress, and also with heart and lung disease.
A nanometer is a unit of spatial measurement that is 10-9 meter, or one billionth of a meter. It is commonly used in nanotechnology, the building of extremely small machines. This was last updated in September 2005.
trying to understand just how small the nanoscale is can be very difficult for people a nanometer is a unit of measurement for length just as you have with meters and centimeters a nanometer is one billionth of a meter 0 000000001 or 10 9 metersthe word nano comes from the greek word for dwarf the term nanoscale is used to refer to objects with dimensions on the order of 1 100 nanometers nmto understand how small a nanometer is we typically compare the nanoscale to objects that we know how big or small they arehe word nano comes from the greek word for dwarf the term nanoscale is used to refer to objects with dimensions on the order of 1 100 nanometers nm to understand how small a nanometer is we typically compare the nanoscale to objects that we know how big or small they are