POP QUIZ

It is the largest of our internal organs and works as the body’s chemical factory, regulating levels of the main chemicals in the blood. What is it?

* Answer on S5.

The liver, weighing 2 1/2 to 3 1/3 pounds, is one of our body’s most important internal organs. The roughly cone-shaped organ has many vital functions, including absorbing oxygen and nutrients from the blood and regulating the blood’s glucose and amino acid levels. The liver also helps break down drugs and toxins and manufactures important proteins.