Medical Definition of resection. : the surgical removal of part of an organ or structure pancreatic resection resection of the lower bowel resection of a tumorâsee abdominoperineal resection, mikulicz resection, segmental resection, wedge resection.
Small crystals of calcium float in the fluid in the inner ear. These crystals can get into the semicircular canals and cause vertigo. When you change the position of your head, they then strike against nerve endings in the semicircular canals and cause the feelings of spinning.
Vestibular disruptions from medications or central nervous system disorders can cause this unsettling sensation. Vertigoâs hallmark symptomâthe feeling that the environment is spinning around following quick head movements or sudden changes in body positionâtypically resolves and then recurs. 1 Symptoms may last from a few seconds to weeks.