Internal organ

Internal organ

An internal organ is any organ within a living organism that is typically housed within the protective barriers of the body, such as the skin or the rib cage. These organs are essential for the body's survival and function, and they include the heart, lungs, liver, kidneys, and intestines, among others.

Function

Each internal organ has a specific function that contributes to the overall health and survival of the organism. For example, the heart pumps blood throughout the body, delivering oxygen and nutrients to other organs and tissues. The lungs facilitate the exchange of oxygen and carbon dioxide, while the liver detoxifies the body and metabolizes drugs. The kidneys filter waste products from the blood, and the intestines absorb nutrients from food.

Classification

Internal organs can be classified into two main categories: vital organs and non-vital organs. Vital organs are those that a person cannot live without, such as the heart and lungs. Non-vital organs are those that a person can live without, either because the body has another organ that can perform the same function, or because the function is not immediately necessary for survival.

Diseases

There are many diseases and conditions that can affect the internal organs. These can range from infections and inflammations, such as pneumonia or hepatitis, to cancers, such as lung cancer or liver cancer. Treatment for these diseases can vary widely, depending on the specific disease, the organ affected, and the overall health of the patient.

See also

• Organ (anatomy)
• Organ system
• Human body