Post Mortem Changes - PowerPoint PPT Presentation

About This Presentation
Title:

Post Mortem Changes

Description:

irreversible arrest of integrated organism functions Post Mortem Changes physical : algor, pallor (paleness), hypostasis, diffusion of fluids & gases chemical ... – PowerPoint PPT presentation

Number of Views:1625
Avg rating:3.0/5.0
Slides: 13
Provided by: Jarosl58
Category:
Tags: changes | mortem | post

less

Transcript and Presenter's Notes

Title: Post Mortem Changes


1
Post Mortem Changes
General Pathology Seminary 1a
  • Jaroslava Dušková
  • Inst. Pathol. ,1st Med. Faculty, Charles Univ.,
    Prague
  • http//www1.lf1.cuni.cz/jdusk/

2
Death
  • irreversible arrest
  • of integrated
  • organism functions

3
Post Mortem Changes
  • physical algor, pallor (paleness),
    hypostasis, diffusion of fluids gases
  • chemical (enzymatic) rigor, blood
    coagulation, autolysis
  • biological putrefaction

4
Post Mortem Changes physical -1
  • algor the body temperature levelled out
    with the surroundings

5
Post Mortem Changes physical -2
  • pallor (paleness) circulation stop,
  • contraction of the vessels, esp.
    arteries

6
Post Mortem Changes physical -3
  • hypostasis gravitation effect
    cadaverous spots

7
Post Mortem Changes physical -4
  • diffusion of fluids gases maceration
  • pseudomelanosis (Hb Hydrogen
    sulfid) - verdohaemoglobin

8
Post Mortem Changes - chemical (enzymatic)
-1
  • rigor (stiffness, cadaverous rigidity)
  • consumption of macroergic compounds (ATP)

9
Post Mortem Changes - chemical (enzymatic)
-2
  • blood coagulation tissue trombokinases,
    endothelium autolysis

10
Post Mortem Changes - chemical (enzymatic)
-3
  • Autolysis
  • disruption of membranes, lost
    compartmentalization
  • Cell changes in autolysis
  • loss of cytoplasm basophilia
  • cytoplasm swelling, vacuolisation
  • loss of nuclear stainability
  • (pyknosis, karyorrhexis, karyolysis)

11
Putrefaction further cadaverous decompositions
  • putrefactive bacteria
  • insects
  • worms etc.

12
Post Mortem Changes - Meaning Consequences
  • physical important in medicojudical
    practice eg. algor time of death
  • chemical interfering limiting all
    special methods
  • biological limiting even the
    macroscopy examination
Write a Comment
User Comments (0)
About PowerShow.com