Stages of Human Decomposition

Vocabulary flashcards covering the five stages of human decomposition and key related terms.

Stages of Human Decomposition

The five-stage process describing the post-mortem breakdown of a human body, consisting of Stage 1 (Fresh), Stage 2 (Bloat), Stage 3 (Active Decay), Stage 4 (Advanced Decay), and Stage 5 (Dry Remains).

Stage 1: Fresh

The first stage of decomposition where flesh autolysis begins, internal cells break down, blood pools, and rigor mortis, livor mortis, and algor mortis occur.

Autolysis

The process of self-digestion where internal cells break down, occurring during the Fresh stage of human decomposition.

Stage 2: Bloat

The second stage of decomposition where bacteria produce gases that cause the body to swell or bloat, releasing strong odors and attracting flies, maggots, and beetles.

Stage 3: Active Decay

The third stage of decomposition characterized by body deflation, tissue liquefaction, darkening or blackening of flesh, and severe loss of mass caused by feeding maggots and insects.

Stage 4: Advanced Decay

The fourth stage of decomposition where most flesh is gone, leaving mostly skin, bones, cartilage, and ligaments, alongside a decrease in insect activity.

Stage 5: Dry Remains

The final stage of decomposition where skeletonization occurs, leaving only dry bones, teeth, and cartilage, with further breakdown depending on environmental conditions.