Title: Describe in-flight illusions.
Course: Aircraft Pilot Training II (20053-II) > Section: Exploring Aeromedical Issues

Description should include the following:

- Spatial disorientation specifically refers to the lack of orientation with regard to the position, attitude, or movement of the airplane in space.
- The body uses three integrated systems to ascertain orientation and movement in space:
  - Vestibular system—organs found in the inner ear that sense position by the way we are balanced
  - Somatosensory system—nerves in the skin, muscles, and joints that, along with hearing, sense position based on gravity, feeling, and sound
  - Visual system—eyes, which sense position based on what is seen

PLT280