Because people in a coma can't express themselves, doctors must rely on physical clues and information provided by families and friends. Be prepared to provide information about the affected person, including: Events leading up to the coma, such as vomiting or headaches
What is Retzius Space? Also called Retropubic space, Prevesical space or cave of Retzius. It is an extraperitoneal space located posterior to the pubic symphysis and anterior to the urinary bladder. It is separated from the anterior abdominal wall by the transversalis fascia and extends to the level of the umbilicus.
What is hertz (unit). The SI unit of frequency is a frequency equal to one oscillation or cycle per second. The unit has a special name, the hertz (Hz), after German physisist Heinrich Rudolf Hertz who first experimentally demonstrated electromagnetic theory of light. As a SI unit, hertz can be prefixed.hat is hertz (unit). The SI unit of frequency is a frequency equal to one oscillation or cycle per second. The unit has a special name, the hertz (Hz), after German physisist Heinrich Rudolf Hertz who first experimentally demonstrated electromagnetic theory of light. As a SI unit, hertz can be prefixed.