LEC 4 - Forensic Pathology Flashcards Preview

Pathology II > LEC 4 - Forensic Pathology > Flashcards

Flashcards in LEC 4 - Forensic Pathology Deck (18):
1

Describe: Cause of death

Injury/diseae that BEGAN the squence of events that led to the death 

2

Describe: Contributory cause 

A previously condition that could have contriubuted to the death of the animal 

3

Describe: Mechanism of death 

Biochemical/Physiological abnormality the resulted the death

4

Describe: Manner of death

Non-accidental 

Accidental 

Natural 

Unknown

5

How long do you have to do a PM before you should freeze the body?

3 days - remember that this will alter some things in the body

6

Why does the body become flaccid after death?

Loss of stimuli 

7

Why does the body become rigid after death?

Calcium ions leak from extracellular fluid 

Continue to move muscle fibers 

Disengage tropomyosin + troponin from mysoin 

Without ATP cannot detach and muscles remain contracted

8

Why does the body become flaccid after being rigid once death occurs? 

Autolysis of the cells - fibers loosen 

9

What causes faster rigor?

High temp 

high excitement 

10

What causes there to be no rigor + slow to rigor?

Moribund 

Cachectic 

11

What is the sequence of rigor?

Jaws 

Eyelids, tail, digits 

Distal limb to proximal

12

How long is the rigor onset?

2 to 4 hours

13

When does corneal clouding occur?

25 hours post-mortem 

14

What will cause corneal clouding to disappear?

Warming 

15

How long does it take for the body temp to become the same as the ambient temperature?

24 to 48 hours

16

What are three basic things that should be looked at in order to determine if neglect has occured?

Body condition 

Subcutatneous/visceral adipose 

Gastric + Intestinal content 

Hydration of MM, eyes shrunken 

17

When is it best to use x-rays for a post-morteum examination?

Gun shot wounds 

Old/New fractures

18