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  2. Prevertebral space - Wikipedia

    en.wikipedia.org/wiki/Prevertebral_space

    On plain radiography, prevertebral space should be less than 6 mm at C3 vertebral level in children; while in adults, the space should be less than 6 mm at C2 level and less than 22 mm at C6 level. Causes of enlarged prevertebral space could be edema, hematoma, abscess, tumors, and post surgical changes. [5]

  3. Flight test - Wikipedia

    en.wikipedia.org/wiki/Flight_test

    The flight test phase can range from the test of a single new system for an existing vehicle to the complete development and certification of a new aircraft, launch vehicle, or reusable spacecraft. Therefore, the duration of a particular flight test program can vary from a few weeks to years.

  4. Clearing the cervical spine - Wikipedia

    en.wikipedia.org/wiki/Clearing_the_cervical_spine

    In addition, indirect signs of injury by the vertebral column are incongruities of the vertebral lines, [11] and/or increased thickness of the prevertebral space: [12] X-ray of normal congruous vertebral lines

  5. OK-GLI - Wikipedia

    en.wikipedia.org/wiki/OK-GLI

    This Buran could take off under its own power for flight tests, in contrast to the American Enterprise test vehicle, which was entirely unpowered and relied on an air launch. The jet engines were used to take off from a normal landing strip, and once it reached a designated point, the engines were shut down and the OK-GLI glided back to land.

  6. Spaceflight associated neuro-ocular syndrome - Wikipedia

    en.wikipedia.org/wiki/Spaceflight_Associated...

    The privately funded Polaris Dawn space capsule free flight in August–September 2024 is planned to test a novel contact-lens-type interocular-pressure measuring device that will be worn by all four of the astronauts on the planned 5-day mission—"trying to better understand a recently-detected but major concern of space habitation ...

  7. Medical certifications for pilots - Wikipedia

    en.wikipedia.org/wiki/Medical_certifications_for...

    Military pilots go to a flight surgeon, an armed forces physician qualified to perform such medical evaluations. With the exception of glider pilots, balloon pilots, and sport-pilots, civilian pilots in the United States and most other nations must obtain a flight physical from a civilian physician known as an Aviation Medical Examiner (AME).

  8. Danger space - Wikipedia

    en.wikipedia.org/wiki/Danger_space

    The danger space or alar space, is a region of the neck. [1] The common name originates from the risk that an infection in this space can spread directly to the thorax , and, due to being a space continuous on the left and right, can furthermore allow infection to spread easily to either side.

  9. X-15 Flight 90 - Wikipedia

    en.wikipedia.org/wiki/X-15_Flight_90

    Flight 90 of the North American X-15 was a research flight conducted by NASA and the US Air Force on July 19, 1963. It was the first of two X-15 missions that passed the 100-km high Kármán line , the FAI definition of space , along with Flight 91 the next month.