First Aid for Corrections Officers Practice Test

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the First Aid for Corrections Officers Test. Benefit from flashcards and multiple-choice questions, each equipped with hints and explanations. Be confident on your exam day!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.


Which of the following is considered the largest organ in the body?

  1. Heart

  2. Liver

  3. Skin

  4. Lungs

The correct answer is: Skin

The skin is considered the largest organ in the body due to its extensive surface area. It acts as a protective barrier that covers the entire body, averaging about 1.5 to 2 square meters in adults, and weighs around 4 to 5 kilograms. The skin plays a crucial role in various bodily functions, including protection against environmental hazards, regulation of temperature, and sensation. In contrast, other organs listed, such as the heart, liver, and lungs, while essential, do not cover the external surface of the body and have a much smaller surface area compared to the skin. For instance, the heart is a muscular organ responsible for pumping blood, the liver has numerous vital functions related to metabolism and detoxification, and the lungs are primarily involved in gas exchange. Each of these organs is vital to health, but none can match the skin in terms of size and external coverage.