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.
Low Earth Orbit (LEO) is commonly accepted as between 124 and 1,240 miles above the Earthâs surface. Spacecraft in LEO make one complete revolution of the Earth in about 90 minutes (the âorbital periodâ). The International Space Station (ISS) orbits between 198.6 and 215.5 miles above the Earthâs surface.The Space Shuttle and Hubble Space Telescope also operate in this region. The proximity to the Earthâs surface provides a high level of detail and ability to detect distinct objects (known as âspatial resolutionâ).edium Earth Orbit (MEO) is the region of space around the Earth above LEO (1,240 miles) and below geosynchronous orbit (22,240 miles). In MEO, orbital periods range from about two to 12 hours.