A typical prokaryotic cell might contain the following parts: 1  cell wall. 2  plasma membrane. 3  cytoplasm. 4  flagella and pili.
The same is done with the jugular drain tube. A hose is attached to the drain tube, and the hose from the embalming machine is connected to the arterial tube. Drainage can also be achieved by keeping the vein open using angle forceps. Many embalmers prefer this as it allows clots and blockages to be more easily flushed from the vascular system.
Embalming, along with other restorative techniques, can restore a body that has been ravaged by disease, decomposition, trauma, etc. to a more familiar and pleasing appearance. Also, embalming provides some safety benefit to the public as it significantly disinfects a body.