THE AUTOPSY. FORENSIC PATHOLOGY. MEDICAL EXAMINER or CORONER. Coroner- elected position, most not medical professionals, undertakers, politicians, required qualifications- US citizen, over 21 yo . Medical examiner- physicians, most not trained in forensic pathology. The Autopsy.
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sudden and unexpected
child or infant deaths
persons under institutional care
drugs or alcohol
deaths in close proximity to surgery
suspicion of public health threatWhen Forensic Pathology is Applied
-establish COD, MOD
-find identity of deceased
effect of trauma or
Traffic FatalitiesCauses of Death/Mechanism of Death
Ocular Fluid (vitreous humor)- after death blood cells in eye break open and release potassium, amt of K present can indicate TOD
Open eyes- eyes dry, cloudy film, 2-3 hrs. after death
Closed eyes- ~24 hrsTOD
Stomach Contents- digestion of last meal
Full undigested meal : 2-4 hrs
Stomach empty, SI full: 4-6 hrs
Small Intestine empty- > 12 hrsTOD
The pathologist first examines the outside of the body. A great deal can be learned in this way. Many pathologists use scalpels with rulers marked on their blades.
The body is opened using a Y-shaped incision from shoulders to mid-chest and down to the pubic region. If the head is to be opened, the pathologist makes a second incision across the head, joining the bony prominences just below and behind the ears. When this is sewed back up, it will be concealed by the pillow on which the dead person's head rests.
The pathologist uses a scalpel for these incisions. There is almost no bleeding, since a dead body has no blood pressure except that produced by gravity.
The incisions are carried down to to mid-chest and down to the pubic region. If the head is to be opened, the pathologist makes a second incision across the head, joining the bony prominences just below and behind the ears. When this is sewed back up, it will be concealed by the pillow on which the dead person's head rests. the skull, the rib cage and breastbone, and the cavity which contains the organs of the abdomen. The scalp and the soft tissues in front of the chest are then reflected back. Again, the pathologist looks around for any abnormalities.
The pathologist weighs both lungs together, then each one separately. Afterwards, the lungs may get inflated with fixative
The rest of the team is continuing with the removal of the other organs. They have decided to take the urinary system as one piece, and the digestive system down to the small intestine as another single piece. This will require careful dissection