What are the main five internal organs in a viscera?

The main five internal organs in the viscera typically include the heart, lungs, liver, kidneys, and intestines. The heart is responsible for pumping blood, while the lungs facilitate gas exchange. The liver plays a crucial role in metabolism and detoxification, the kidneys filter blood to produce urine, and the intestines are involved in digestion and nutrient absorption. Together, these organs are essential for maintaining bodily functions and overall health.