Review Activity Determining Post Mortem Interval Directions You

Review Activity: Determining Post Mortem Interval

Directions ● You can do this activity by yourself or partner up with one or two others. ● Get out a sheet of notebook paper and keep track of the question number, your answers and whether you get them right or not as you go - Don’t worry if you get a bunch wrong. Your score on this won’t affect your grade but I will give you participation points. ● When you are done, turn in your work.

Important!! View in present mode. I have it set up so the answers will appear when you click. If you aren’t in present mode, you will see the question and the answer side by side……. . that might make it easy for you to get it right, but how useful will that be to help you study?

Question 1 What do you call the incision made during autopsy that runs from shoulder to shoulder and down to the pubic bone? Answer: The Y Incision

Question 2 When you dig up a grave to re-autopsy or re-examine the body it is called what? Answer: Exhuming

Question 3 If the highest concentration of poison is in the GI tract or the liver, how was the person poisoned? Answer: Orally

Question 4 If the highest concentration of poison is in the lungs, how was the person poisoned? Answer: They breathed it in

Question 5 What technique uses a moving liquid to separate a substance into its components? Answer: Thin Layer Chromatography

Question 6 How do you classify a chemical with a p. H under 7? Answer: It is an acid.

Question 7 How does the body farm get their bodies? Answer: From donations, unclaimed, or from the homeless

Question 8 What do you call it when the brain ceases activity due to the lack of oxygen? Answer: Somatic Death

Question 9 What do you call it when bacterial activity causes formation of gases and a rotten egg smell? Answer: Putrefaction

Question 10 What are the fluids that leak out of tissue that collapses due to pressure build up? Answer: Purge fluids

Question 11 What happens during butyric fermentation? Answer: The exposed flesh ferments and slowly dries

Question 12 What stage is it when the remaining tissue becomes leathery and hardens? Answer: Dry Decay

Question 13 What is it called when most of the soft tissue is gone and the bones are clearly exposed? Answer: Skeletonization

Question 14 What can teeth tell you about a person? Answer: Age and economic status

Question 15 There are two really good parts to look at to determine gender from a skeleton. Can you name at least one? Answer: Skull or Pelvis

Question 16 An overdose of heroin is suspected as the cause of death. Why wouldn’t a toxicologist screen for heroin? Answer: It is immediately metabolized to morphine. Screen for that.

Question 17 What technique involves getting antibodies to a specific drug from an animal and then using those antibodies to test if a substance is present in humans? Answer: Immunoassay

Question 18 What category do the drugs GHB, Rohypnol and Ketamine fall under? Answer: Club Drugs

Question 19 What two drugs account for the most toxicology cases in the U. S. ? Answer: Alcohol and Cocaine

Question 20 What are three mortis’ we learned about? Answer: Rigor, Algor, and Livor

Question 21 Which mortis deals with temperature? Answer: Algor

Question 22 What organ is often used to take body temperature? Hint – Can you identify the organ in the picture? Answer: The Liver

Question 23 In general, the highest concentration of a toxin are found where in the body? Answer: Where the toxin has entered the body.

Question 24 Which mortis deals with purplish patches? Answer: Livor

Question 25 Which mortis deals with muscle stiffness? Answer: Rigor

Question 26 What category of drugs do Opium, Codeine, Morphine and Heroin fall into? A. Inhalants B. Club Drugs C. Depressants D. Narcotics Answer: D. Narcotics

Question 27 List three factors that impact algor mortis. Answer: Here are four. Ambient temperature, obesity, clothing, and humidity

Question 28 What is the formula to calculate PMI using temperature? Answer: (98. 6 - liver temperature)/1. 5 F

Question 29 A body is found. When taken, the body temperature is 85. 1. Room temperature is 72. Approximately how long has this person been dead? Answer: This person has been dead 9 hours.

Question 30 What body part experiences rigor first? Answer: Face and jaw

Question 31 If a body has been dead for three hours and the eyes are cloudy, what does this mean? Answer: The person died with their eyes open

Question 32 Approximately how many hours does it take to empty your stomach of food? Answer: 4 -6 hours

Question 33 List the following body parts in order of how food passes through the digestive system: small intestine, stomach, esophagus, mouth, large Intestine Answer: mouth, esophagus, stomach, small intestine, large intestine

Question 34 What is autolysis? Answer: When your cell enzymes start to break you down.

Question 35 What is adipocere? Answer: White waxy substance when fat meets water.

Question 36 What do bleached bones indicate? Answer: The bones have been out in the sun

Question 37 How far away can you smell a decomposing body? Answer: About 30 yards

Question 38 What does it mean to say lividity is fixed? Answer: The purplish color does not disappear when touched

Question 39 What are three factors that might speed up decomposition? Answer: Here are six factors. Small body, open wounds, acidic soil, warm climate, insects, exposed flesh

Question 40 What type of vessel brings blood to the heart? Answer: Vein

Question 41 What category do Ethyl Alcohol, Barbiturates, and Benzodiazepines fall into? A. Inhalants B. Club Drugs C. Depressants D. Narcotics Answer: C. Depressants

Question 42 What type of vessel takes blood away from the heart? Answer: Artery

Question 43 What would you test for to see if a person was alive before being burned in a fire? Answer: Look for CO levels in the lungs indicating that they breathed it in.

Question 44 A body is discovered. The face and jaw are not in rigor but the rest of the body is. Out of these choices, which gives the most likely time since death? A. 0 -5 hours ago B. 7 -10 hours ago C. 15 -20 hours ago D. 35 -40 hours ago Answer: C. 15 -20 hours ago

Question 45 You find lividity on a person’s back. They are lying on their front. What does this mean? Answer: The body has been moved

Question 46 What does the Rokitansky method refer to? Answer: Removing all the body organs at once for examination during the autopsy

Question 47 A gunshot wound is a good example of which of the following? A. Manner of Death B. Cause of Death C. Mechanism of Death Answer: B. Cause of Death

Question 48 There are 5 Manners of Death. How many can you name? Answer: Homicide, Suicide, Natural, Accidental, Undetermined

Question 49 What is the epiphyseal union? Answer: Areas of the femur that fuse as a person ages

Question 50 True or False: The amount of alcohol excreted in the breath is directly proportional to the amount in the blood. Answer: True

Question 51 (for Honors Extension) What body system is the slide to the right part of? Answer: This is lung tissue – note the air spaces - so it’s part of the respiratory system

Question 52 (for Honors Extension) One of these lines is pointing to an artery and one to a vein. Which is the artery? Answer: Line 1 is the artery – notice that it has thick reinforced walls.

Question 53 (for Honors Extension) One of these pictures is from the male reproductive system. One is from the female. Which is which? Picture 1 Picture 2 Answer: Picture 1 is from a male. Picture 2 is from a female.

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