Cardiac electrophysiology is the science of elucidating, diagnosing, and treating the electrical activities of the heart. The term is usually used to describe studies of such phenomena by invasive (intracardiac) catheter recording of spontaneous activity as well as of cardiac responses to programmed electrical stimulation (PES).
Ancient Egyptian Pyramids in Giza. Egyptian pyramids are great monument of a great civilization that was born seven thousand years ago. The ancient Egyptians built more than 90 royal pyramids, from about 2630 BC until about 1530 BC.During that time, the pyramid shape evolved from a series of stepped terraces to sloped pyramidal shape.ncient Egyptian Pyramids in Giza. Egyptian pyramids are great monument of a great civilization that was born seven thousand years ago. The ancient Egyptians built more than 90 royal pyramids, from about 2630 BC until about 1530 BC.
49,340 Contributions. The purpose of the Egyptian pyramids was for the pharaohs to have a  place where wild animals, grave robbers, and the floods of the Nile  didn't have effect on the body.Whe â¦ n first built, the pyramids were  white, being made out of limestone, reflected light.irstly, the pyramid shape represents the first land to appear at the beginning of time--the primordial mound, or the Ben-ben. Secondly, the sloping sides of the pyramid sha â¦ pe enabled the dead pharaoh to symbolically climb up to the heavens and live in peace forever.