Final answer:
Jaundice and icterus are terms used interchangeably to describe the accumulation of bilirubin in the body, while kernicterus is a severe form of jaundice that can cause neurological damage in newborns.
Step-by-step explanation:
Jaundice, icterus, and kernicterus are all related to the accumulation of bilirubin in the body, which leads to a yellowish coloration of the skin and mucous membranes. Jaundice and icterus are terms used interchangeably to describe this condition. It can be caused by various factors such as liver disease, hemolysis, or bile duct obstruction. Kernicterus, on the other hand, is a severe form of jaundice that occurs in newborns when high levels of bilirubin reach the brain, causing neurological damage.