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.
Vertigo and dizziness affect your perception of motion and balance. Subjective vertigo affects the brain's perception of motion causing you to feel that you spinning. Dizziness affects your balance, causing you to feel lightheaded, woozy, or nauseous.