Which method of injection and drainage involves performing the injection at one site while allowing drainage from another?

The method of injection and drainage that involves performing the injection at one site while allowing drainage from another is known as the split method. This technique is utilized in embalming practices where the embalmer injects the embalming fluid into the arterial system through one site, typically an artery, while simultaneously allowing the blood and other fluids to drain out from another point, usually a vein.

This method is particularly effective as it helps to ensure that the fluid distributes evenly throughout the body while removing existing fluids, thereby facilitating better preservation and appearance of the deceased. The split technique allows for a more controlled process, minimizing the chance of fluid back-pressure and ensuring better saturation of the tissues.

In contrast, other methods like continuous, simultaneous, and sequential do not involve this specific approach of separating injection and drainage sites. Each of these methods has its own techniques and applications, focusing on different strategies in the embalming process but not achieving the distinct separation evidenced in the split method.