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.
A balance disorder is a condition that makes you feel unsteady or dizzy. If you are standing, sitting, or lying down, you might feel as if you are moving, spinning, or floating. If you are walking, you might suddenly feel as if you are tipping over.