Death Failure of any of these systems will result in death Respiratory system Circulatory system Central nervous system.

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Presentation transcript:

Death Failure of any of these systems will result in death Respiratory system Circulatory system Central nervous system

Clinical death not breathing, no detectable heartbeat and no detectable neurological function

Legal death Definition due to technology individuals with complete absence of neurological function can be kept alive with the use of respirators declared dead even though heart may still be beating

Algor Mortis Normal body temp. 98.6° Glaister formula most accurate w/i 12 hrs, can be used until body temp. reaches external temp., not more than 36hrs Body cools ° F/ hour H = (98.4 °-internal temperature) 1.5

What factors affect the accuracy of internal body temp?

Time -body cools to environmental temperature Environmental temperature Location of the body -in water, the temperature equalizes rapidly; in the ground, it cools slowly because of the insulating effect of the soil Body build and clothing -obesity or heavy clothing slows cooling because of insulation Humidity and air currents -body exposed to wind cools rapidly

Approximate time of death 1)92.1° taken at 8:30 pm 2)82.4 ° taken at 3:00 am 3)68.0 ° taken at 9:45 am

Answer the following A victim is found lying face down and has an internal body temperature of 93.1°F at 1:30 am. Approximately what time did they die? Where would the victim show livor mortis? Would the victim’s livor mortis be fixed? What would the victim’s rigor mortis be like?

Suspended Animation How do they achieve suspended animation? What are the benefits of suspended animation?

Livor Mortis Purple-red Usual Cherry-red CO, CN, cold

Petechiae (Tardieu spots) or purpera Rupture of small vessels from pressure More rapid in asphyxial deaths

Cadaveric Spasm

Instantaneous rigor does not relax Intense physical or emotional activity