Postmortem Changes and Injuries Flashcards

Algor mortis refers to:

Answer: The cooling of the body after death to ambient temperature

Algor mortis is the gradual cooling of the body after death toward the ambient environmental temperature.

Which stage of decomposition is characterized by the body turning green, bloating, and the development of strong odor?

Answer: Bloat (putrefaction) stage

The bloat/putrefaction stage is marked by gas production from bacterial activity, causing abdominal distension, skin discoloration to green-black, fluid purging, and strong odor.

A decedent is found outdoors in summer with extensive insect activity and green discoloration of the abdomen. The estimated postmortem interval is most likely:

Answer: Greater than 3 days (72+ hours)

Green abdominal discoloration indicating putrefaction and significant insect activity suggest a postmortem interval of more than 72 hours, especially in summer heat.

Which postmortem change would be least reliable for estimating time of death in a decedent found in an outdoor environment with temperature fluctuations?

Answer: Body temperature (algor mortis) using the standard Henssge nomogram

Algor mortis calculations based on standard nomograms assume steady ambient temperatures. Outdoor temperature fluctuations make these calculations unreliable.

Adipocere formation as a postmortem change requires which environmental conditions?

Answer: Warm, moist, anaerobic environments (wet soil, submerged water, airtight enclosures)

Adipocere (saponification of body fat) forms in warm, moist, anaerobic conditions that favor hydrolysis and hydrogenation of fat into a waxy, soap-like substance.

A patterned injury at a death scene is forensically significant because:

Answer: The pattern may reflect the shape of the instrument or object that caused the injury, aiding in weapon identification

Patterned injuries reflect the shape of the causative object and can assist in identifying or excluding specific weapons or instruments.