Stage 3: Rigor Mortis

Rigor Mortis

Corpse in morgue displays signs of Rigor Mortis

The third stage of decomposition known as “Rigor Mortis” translates to “stiffness” [rigor] “of death” [mortis]. The stiffness in a body during the phase of Rigor Mortis is caused by a build up of lactic acid which causes chemical changes within muscles. In life, lactic acid, also known as “milk acid” plays various roles in a body’s biochemical process. The myosin and actin (proteins involved in muscle movement) in the body then begin to harden, causing all muscles in the body to harden for a period of time, as well. At the time of death, “primary flaccidity” occurs and Rigor Mortis begins within 2-6 hours of death, starting with the eyelids, neck and jaw before spreading throughout the rest of the body over the following 4-6 hours. Sometimes all the hardening and contracting of muscles can cause an involuntary postmortem ejaculation in a male corpse. The exact onset and rate of completion of this stage is determined by many factors including age, gender, body type and muscle build; For instance, Rigor Mortis may not be perceivable in infants and children who lack muscle mass. Rigor Mortis may develop more quickly if cause of death is an infection, terminal seizure, electrocution or if the deceased has recently engaged in strenuous exercise or had a higher than average body temperature caused by fever, drugs or intoxication. Generally, 36-48 hours after death “secondary flaccidity” occurs when bacteria in the body begins eating away at the deceased from the inside out, causing the body to end Rigor Mortis and loosen again as muscle tissue begins to deteriorate. Sometimes, it can take 72 hours for the body to reach secondary flaccidity. In a warm environment, Rigor Mortis tends to dissipate sooner than average, whereas in a cold climate, the effects may persist longer.
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Find out what happens prior to Rigor Mortis, Stage 1: Pallor Mortis and Stage 2: Algor Mortis and after Stage 4: Livor Mortis

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If you enjoyed this article, you may also like Everybody Poops: The Post-Mortem Edition and Demystifying the Process of Dying

Stage 6: Decomposition

SallyMannBodyFarm

Decomposing corpse from Sally Mann’s series, ‘Body Farm’

In the 6th stage of decomposition, true decomposition or “biotic decomposition”, takes place. Biotic decomposition is breakdown of the body’s components into smaller and smaller components until the organic body is gone. This process is caused by living organisms, usually microorganisms. When the body is broken down by other, faster means such as cremation, alkaline hydrolysis/resomation, promessa, or other physical/chemical process, it is refered to as “abiotic decomposition”. The speed and success of biotic decomposition, as with most stages of the decomposition process, relies on many factors. Generally speaking, conditions which aid in the previous stage, Putrefaction also aid in biotic decomposition. The amount of bacteria in the body at time of death and ability to produce more bacteria postmortem plays a large role. For instance, if you eat a lot of meat, your corpse will contain and produce higher levels of bacteria than a vegan. The bodies of deceased newborns who have never been fed decompose very slowly because in most cases, they are “sterile”, or mostly void of bacteria in their system. However, if a newborn passes away but has been fed, their body tends to decompose much faster than average. If a corpse has been mutilated or obtained large, open wounds decomposition will take place more quickly because it allows easy entry for insects and microorganisms whereas clothing may slow the process. If a body is buried after beginning to decompose somewhat, it will complete more quickly than if the body was buried soon after death. Embalming will delay the process, as is its function, but if the body is left to the elements in open air with scavengers nearby to help the body breakdown, decomposition will complete very rapidly.

Decomposing corpse from Sally Mann's series, 'Body Farm'

Decomposing corpse from Sally Mann’s series, ‘Body Farm’

Decomposition begins and ends slower in water than in open air. Warm, fresh and/or stagnant water aid slightly in the process, while cold water, salt water and/or running water slow decomposition. Deep water may cause a delay in the onset of biotic decomposition. Water contaminated by sewage will speed up the process. When in water, the skin on the hands and feet of the cadaver may become swollen and bleached. Within 2-4 days, “sleeving” becomes possible. Sleeving, also called “skin slippage”, refers to the loosening of decaying skin to the point that it will slough off in one piece, or made able to pull off as though it were a sleeve. After several weeks in the water, this skin can easily by stripped off, or sleeved, by the current or contact with objects such as rocks. Once skin slippage begins and the upper layer of epidermis has been sleeved off, it is incredibly difficult, if not impossible to obtain fingerprints in order to identify the deceased. Mold can also begin to form on a deceased body in water or a moist area, but usually only on exposed patches of skin. Generally, bodies left in water do not remain intact long due to crustaceans, fish, and water rats feeding on the corpse. “Casper’s Law”, also known as “Casper’s Ratio” suggests that if all other factors (clothing, contents of digestive system, lesions/abrasions, weather conditions, temperature, etc) is equal, bodies with free access to open air decompose twice as fast as in water, and eight times as fast as when buried.

Decomposing corpse from Sally Mann's series, 'Body Farm'

Decomposing corpse from Sally Mann’s series, ‘Body Farm’

Find out what happens before Biotic Decomposition in Stage 1: Pallor Mortis, Stage 2: Algor Mortis, Stage 3: Rigor Mortis, Stage 4: Livor Mortis and Stage 5: Putrefaction
and in the final stage of decomposition, Stage 7: Skeletonization

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See more of Sally Mann’s series Body Farm

If you enjoyed this article, you may also like: Everybody Poops: The Post-Mortem Edition, Demystifying the Process of Dying and Burying the Dead is Killing the Planet

Pascualita: How Much is that Corpse Bride in the Window?

 In downtown Chihuahua, Mexico a mannequin, which has been on display in the window at the “La Popular” bridal shop for over 75 years, is rumored to be an impeccably embalmed corpse. It is said that the original owner of the store, Pascuala Esparza, was a talented designer and seamstress. She created gorgeous gowns in her bridal boutique so of course, when her daughter, Pascualita, was to be married, Pascuala Esparza made her the dress of her dreams. Sadly, on the day of Pascualita’s wedding, she was bitten by a black widow spider and died before she could marry her intended. Pascuala was devastated by her daughter’s sudden death and, after having the body embalmed, decided to dress Pascualita in her wedding gown. She displayed her body in the window of “La Popular” on March 25, 1930 and it has remained there ever since.

This caused quite a bit of uproar from residents of Chihuahua who weren’t too thrilled knowing they would be walking past the corpse of a young woman on a regular basis. Eventually, most citizens became used to Pascualita staring at them through the window as they strolled around downtown. Som revel in the presence of this local oddity and view her as a sort of landmark which brings in a flock of tourists from Europe, South America and the United States each year. This story however, may be entirely, or at least partially legend. Many older residents of the area swear the body is truly that of the deceased Pascualita Esparza but just as many claim that shortly after the town went into an uproar over her display in the window, Pascuala made a statement that the body was not her deceased daughter. Obviously, the most logical theory is that Pascualita is a very life-like mannequin that was incredibly impressive for the time period; Perhaps Pascuala started an itty bitty rumor in an attempt to draw in customers to the store. One thing which keeps people questioning the authenticity of Pascualita is the small, lifelike and possibly decomposition related-imperfections such as the deep folds of her palm.

 La Popular employee Sonia Burciaga is the lucky lady who has been bestowed with the task of changing the dress on the questionable corpse twice a week. Sonia confessed, “Everytime I go near Pascualita my hands break out in a sweat. Her hands are very realistic and she even has varicose veins on her legs. I believe she’s a real person.”

 You may still be wondering how a body that has been dead and on display for over 75 rears has not begun to decompose. While the exact method of preservation in the hypothetical case of Pascualita remains a mystery, avoiding decomposition for an expanded period of time is not impossible. Incorruptible corpses, bodies that do not decay, were considered by the Catholic Church to be a miracle up until quite recently when it was discovered that the prevention of decomposition was caused by conditions within the tomb in which the body was laid to rest. These “Incorruptible” bodies did not appear to decompose for several decades and when they did, it was usually due to relocation of the corpse. The reason the bodies which have been moved and put on display still have not decomposed is due in part to regular “treatments” the bodies undergo to maintain the natural preservation. It is possible that somehow, with the aid of her environment, Pascualita’s body was able to avoid decomposition through a mixture of artificial and natural embalming. Her waxy skin tone is almost identical to the flesh of Incorruptible corpses. Some of the more wild claims about the body of Pascualita are that her eyes follow you around the store, she changes positions at night and there are even stories that a French magician visits the store at night, brings Pascualita to life and takes her out on the town. Whether you believe Pascualita is an incredibly life-like mannequin or a real dead body, I think we can all agree on one thing: Pascualita is not dating a mysterious French magician.

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If you enjoyed this article, you may also like Pray the Decay Away: Incorruptible Corpses and Other Forms of Natural Postmortem Preservation, Everybody Poops: The Post-Mortem Edition, Rasputin’s Pickled Penis on Public Display in St. PetersburgThe Anguished Man: Painted in Artist’s Blood Before Suicide and Is “Kicking the Bucket” For Catholics Only?