Which of the following is one of the body's systems?

Which of the following is one of the body's systems?

• A. Gastrointestinal
• B. Psychological
• C. External
• D. Proximal

Answer: (A)

Body systems are groups of organs that work together to perform a major function in the body. The gastrointestinal system, or digestive system, handles breaking down food, absorbing nutrients, and eliminating waste. It includes organs like the mouth, esophagus, stomach, small and large intestines, liver, pancreas, and gallbladder. This makes it a true bodily system. The other options aren’t systems in anatomical terms: psychological relates to mental processes, external is a descriptive term, and proximal is an anatomical direction. So the gastrointestinal is the correct choice.

Body systems are groups of organs that work together to perform a major function in the body. The gastrointestinal system, or digestive system, handles breaking down food, absorbing nutrients, and eliminating waste. It includes organs like the mouth, esophagus, stomach, small and large intestines, liver, pancreas, and gallbladder. This makes it a true bodily system. The other options aren’t systems in anatomical terms: psychological relates to mental processes, external is a descriptive term, and proximal is an anatomical direction. So the gastrointestinal is the correct choice.