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Autopsies. Intro. By law, deaths that occur under the following circumstances must be investigated: Violent crime, suicide, or accident Within 24 hours of entering a hospital or as a result of surgery

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Presentation Transcript
intro
Intro

By law, deaths that occur under the following circumstances must be investigated:

  • Violent crime, suicide, or accident
  • Within 24 hours of entering a hospital or as a result of surgery
  • A natural death when a doctor is not present or the patient is not under the care of a medical facility
  • Occurs in police custody or in a correctional facility
  • Results from a communicable disease that may pose a threat to public health
autopsy basics
Autopsy Basics
  • Performed by a forensic pathologist – a medical doctor who is trained to identify why and how someone died and present those finding in court.
  • At the scene – Postmortem interval is estimated (amount of time since death)
  • In the ME’s office:
  • Determine cause, manner & mechanism of death
procedure
Procedure

1) A Y-incision is made on the torso to expose the inner organs

procedure1
Procedure
  • Each organ is removed, weighed, carefully observed, and a sample is taken and sent to appropriate people
    • Toxicology
    • Histology
    • Neuropathology
    • Serology
what to look for
What to look for:
  • Blood for DNA – ME’s collect blood from arteries for identification and toxicology (determines drug & alcohol content). Dried blood on skin could be from perpetrator
  • Semen – If sexual assault is suspected
  • Hair – a “control sample” is collected to compare to unknown hairs found at the scene
  • Tissue – Tissue samples are sent to histology for analysis
  • Fingernails – Could contain DNA from perpetrator if a violent crime
  • Bite Marks – Images sent to forensic odontologists
close up
Close Up
  • Everything is put back in place and a “baseball stitch” Is used to close back up.
  • A report is made….. And yes…. They have to use complete sentences and punctuation counts.
now you try
Now you try!
  • Go to:

http://australianmuseum.net.au/interactive-tools/autopsy/ - You must use internet explorer!

(http://bit.do/GH6 )

Describe in 8-10 sentences the procedure of an autopsy. Points counted off for missing sentences or short sentences obviously used to fill space.

now you try1
Now you try!
  • Go to:

http://webcom4.grtxle.com/khforensics/VirtualAutopsyPackage/VirtualAutopsy3_fs.html

( http://bit.do/GJf )

Do 2 autopsies then have the program email me the results: [email protected]

biomolecules review
Biomolecules Review!
  • Carbohydrate
  • Proteins
  • Lipids
  • Nucleic Acids
proteins
Proteins:
  • Account for more than 50% of the dry mass of most cells, and are instrumental in almost everything organisms do. We will cover these in great detail.
lipids
Lipids:
  • Monomer- monoglycerides and fatty acids
  • Polymer-Triglycerides: Glycerol, and 3 Fatty acid chains
  • Phospholipids
  • Jobs in the body:
    • Long-term energy storage
    • Makes up cell membranes
    • Sending messages to distant cells (hormones)
    • Insulation and protection of us and our cells!
carbohydrates sugar
Carbohydrates: (sugar!)
  • Main source of energy for life on earth
  • Monomer-"Simple sugars" monosaccharides (glucose, ribose)
  • Jobs in the body:
  • Immediate energy
  • Labeling a cell
  • Cell walls in plants
nucleic acids
Nucleic Acids:
  • Monomer: Nucleotide
    • Composed of a nitrogenous base, a sugar, and a phosphate group.
    • Combine to form DNA
  • Polymer, DNA, RNA
food examples3
Food Examples
  • Uhhhhhhhhhhhhhhhhhhhh………
  • Stomach Contents Lab next class!!!
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