What is the purpose of the trocar during the embalming process?

The trocar is a specialized instrument used during the embalming process primarily for the removal of abdominal and thoracic fluids. This function is crucial as it helps in reducing the pressure within the body cavities caused by the accumulation of natural fluids. By evacuating these fluids, embalmers can create a more favorable environment for the distribution of embalming fluid throughout the tissues, which is vital for effective preservation and sanitation.

The removal of fluids also aids in minimizing decomposition and can help prevent the formation of gases that could lead to bloating. Thus, the correct answer highlights the trocar's role in fluid management, which is essential for achieving the desired preservation outcome in embalming.