Section 6.1: Principles & History of Embalming

Embalming is a specialized chemical process that represents the intersection of public health, chemistry, and restorative art in funeral service. Understanding both the scientific principles and the historical evolution of this practice is essential for the National Board Examination (NBE).

Defining Embalming

According to standard mortuary science, embalming is defined as the chemical treatment of the dead human body to reduce the presence and growth of microorganisms, retard organic decomposition, and restore an acceptable physical appearance. Chemically, embalming acts upon body proteins. When a person dies, biological processes do not simply stop; instead, they shift from anabolic processes (building up) to catabolic processes (breaking down). The tissue proteins undergo autolysis (self-digestion by cellular enzymes) and putrefaction (anaerobic decomposition by bacterial enzymes). Embalming chemicals, primarily aldehydes, react with the amino groups of these proteins, cross-linking them to form a rigid, stable gel network that is resistant to enzymatic breakdown.

The Three Core Pillars of Embalming

The modern embalming process is guided by three primary objectives, prioritized in a specific order:

1. Sanitization and Disinfection: This is the most crucial, public health-oriented purpose of embalming. The process kills pathogenic vegetative bacteria, rendering the body safe for public viewing and handling by funeral home staff. Disinfection occurs in three stages:
   • Primary Disinfection: Carried out before any embalming procedures begin, involving washing the body with germicidal soap and treating orifices.
   • Concurrent Disinfection: Performed during the injection of arterial fluid, where bodily fluids are washed away and sanitized.
   • Terminal Disinfection: Completed after injection and cavity treatment, involving the cleaning of instruments, the prep room, and the final washing of the body.
2. Preservation: Preservation is the temporary halt of organic decomposition. It is important to emphasize that embalming does not make a body "indestructible" or permanently preserved. It creates a temporary state of preservation by altering the substrate (protein) so that it cannot serve as a food source for bacteria, and by neutralizing active autolytic and bacterial enzymes.
3. Restoration: The aesthetic component of embalming. It aims to present the deceased in a natural, peaceful state, which is often termed a "memory picture." Restoration involves re-establishing natural color, neutralizing discoloration (such as livor mortis), rehydrating desiccated tissues, and rebuilding facial contours distorted by trauma or wasting diseases.

Historical Evolution of Embalming

Ancient Egyptian Embalming

The origin of embalming is deeply rooted in ancient Egypt (approx. 3200 BCE to 650 CE). Egyptian embalming was driven by religious beliefs regarding the afterlife. The Egyptians believed that the soul (consisting of the Ka and the Ba) would return to the body after a long journey, but only if the physical body remained recognizable and intact. The process varied by social class, but the most elaborate method involved:

• Evisceration: Removal of the brain through the nasal cavity using specialized hooks, and removal of the visceral organs through a small incision in the left flank.
• Canopic Jars: The lungs, stomach, liver, and intestines were preserved separately in dedicated jars representing the four sons of Horus.
• Natron Bath: The body was dehydrated by burying it in dry natron (a natural salt compound consisting of sodium carbonate, sodium bicarbonate, sodium chloride, and sodium sulfate) for approximately 40 days.
• Wrapping & Resins: After dehydration, the body was washed, treated with aromatic oils and resins, and wrapped in extensive layers of linen.

Modern Embalming and the American Civil War

Modern arterial embalming arose in Europe during the 17th and 18th centuries (developed by anatomists like William Harvey, William Hunter, and Jean Nicolas Gannal for anatomical preservation), but it was popularized and refined in the United States during the American Civil War (1861–1865). The necessity of returning thousands of fallen soldiers from distant battlefields to their northern homes created an urgent demand for preservation that went beyond simple ice cooling.

• Dr. Thomas Holmes: Frequently called the "Father of American Embalming." Holmes was a physician who patented an embalming syringe and developed early, non-toxic (at the time, arsenic-free) preservation fluids. He personally embalmed thousands of Union casualties, including Colonel Elmer Ellsworth, which garnered national attention.
• The Transition of Chemicals: Early chemical embalming utilized heavy metal solutions, including arsenic, mercury, lead, and zinc. While highly effective as preservatives and sanitizers, these chemicals posed extreme health hazards to embalmers. In the early 20th century, state laws banned heavy metal embalming fluids because they interfered with forensic toxicology investigations (it was impossible to determine if a person died of arsenic poisoning if their body was embalmed with arsenic). Consequently, formaldehyde became the industry standard.

Legal and Public Health Status

Embalming occupies a distinct legal space. In the United States, there is no federal law that mandates embalming for all deceased persons. However, states have specific statutes. Generally, embalming is required under certain conditions, such as:

• Transportation of the body via common carrier (airplane or train) across state or national borders.
• Death caused by certain highly contagious, quarantinable diseases (varies by state).
• When a public viewing or open-casket wake is scheduled, most funeral homes write it into their business policy as a requirement.

Under the Federal Trade Commission's (FTC) Funeral Rule, funeral directors must obtain express permission from the family before embalming and cannot charge a fee for embalming unless permission was granted or a state law requires it. The General Price List (GPL) must contain a mandatory disclosure stating that embalming is not required by law except in certain special cases.