Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

asphyxia

it includes all the facts of asphyxia and its types.

  • Be the first to comment

asphyxia

  1. 1. ASPHYXIA :SUBMITTED BY • AMANPREET KAUR • MSC II • FORENSIC SCI • 3931 • 1
  2. 2. CONTENTS DEFINITION* ANOXIA* SIGNS AND SYMPTOMS OF ASPHYXIA* CLASSIFICATION OF ASPHYXIA* SUFFOCATION* HANGING* STRANGULATION* DROWNING* REFERENCES* 2
  3. 3. ASPHYXIA Defective aeration of blood due to any cause is known as ASPHYXIA. It is simply a condition in which body tissues are deprived from oxygen .completely or partially The true terms for asphyxia is ANOXIA .or HYPOXIA 3
  4. 4. ANOXIA :ANOXIA is of three types ANOXIC ANOXIA * ANAEMIC ANOXIA * STAGNANT ANOXIA * 4
  5. 5. SIGNS AND SYMPTOMS CONGESTION. 1 OEDEMA. 2 CYANOSIS. 3 PETECHIAE. 4 5
  6. 6. PETHECHIAE IN EYES 6 CYANOSIS
  7. 7. CLASSIFICATION OF ASPHYXIA :MECHANICAL. 1 Suffocation * Hanging * Strangulation * Drowning * CHEMICAL. 2 SEXUAL. 3 7
  8. 8. SUFFOCATION To die as a result of not being able to “ :breath.” It may be due to two reasons DUE TO LACK OF OXYGEN IN * ATMOSPHERE DUE TO OBSTRUCTION OF AIR * PASSAGES SMOTHERING. 1 CHOKING. 2 TRAUMATIC ASPHYXIA. 3 GAGGING. 4 8
  9. 9. GAGGING SMOTHERING 9
  10. 10. CHOKING 10
  11. 11. WHETHER IT IS HOMICIDAL, SUICIDAL OR ACCIDENTAL Suffocation may be ACCIDENTAL like in * case of CO poisoning and in case of choking of respiratory tract internally by .food bolus HOMICIDAL cases are common like * GAGGING is used by the thieves to .prevent the victim from shouting SUICIDAL cases are less frequent . But in * some western countries people use coal . gas for committing suicide 11
  12. 12. HANGING Form of death produced by suspending the body with a ligature round the neck and here, the constricting force is weight of the body. Commonly used ligatures are rope, turban, dhoti, saree , belt, or that is available . at the scene 12
  13. 13. TYPES OF HANGING On the basis of KNOT * TYPICAL. 1 ATYPICAL. 2 On the basis of SUSPENSION * COMPLETE. 1 PARTIAL OR INCOMPLETE. 2 13
  14. 14. COMPLETE HANGING 14
  15. 15. PARTIAL HANGING 15
  16. 16. CAUSE OF DEATH IN HANGING Injury to spinal cord. 1 Sudden stoppage of heartbeat due to . 2 . vaso vagal inhibition .Occlusion of the airways. 3 .Occlusion of jugular system. 4 .Occlusion of carotid arteries. 5 Fracture or dislocation of cervical . 6 . vertebrae 16
  17. 17. Postmortem features in cases of death due to HANGING LIGATURE MARKS ON THE NECK* DRIED DRIBBLES OF SALIAVA AT* ANGLE OF MOUTH HYOID BONE FRACTURE* SWOLLEN FACE WITH PROTRUDED * EYES AND TOUNGE PASSAGE OF URINE, FAECES OR * SEMINAL STAINS 17
  18. 18. HANGING WITH LIGATURE. 1 AFTER . 2 REMOVAL OF LIGATURE 18
  19. 19. Others forms of HANGING JUDICIAL HANGING * LYNCHING * ACCIDENTAL HANGING * SEXUAL ASPHYXIA (AUTOEROTIC * (HANGING 19
  20. 20. WHETHER IT IS HOMICIDAL, SUICIDAL OR ACCIDENTAL . Hanging is mostly of suicidal in nature* Cases of homicidal hanging are less * frequently found. Because it is impossible to control a person while he is alive. In case of homicidal hanging we find traces of drugs, injury on the body which is firstly .used to incapacitate the person Accidental hanging cases are also * frequent 20
  21. 21. STRANGULATION STRANGULATION is a violent form of death, which results from constricting the neck by means of a ligature or any other means without suspending .the body 21
  22. 22. TYPES OF STRANGULATION THROTTLING: when constriction is produced by . 1 .the pressure of the fingers and the palms GARROTING: loop of thin string thrown from . 2 .back and tightened BANSDOLA: neck compressed between two . 3 .bamboo sticks MUGGING: pressure upon neck by arm around. 4 .the throat 22
  23. 23. LIGATURE STRANGULATION The pressure upon the neck may be * effected by compressing whole or a part of .the circumference of neck by a ligature CAUSE OF DEATH VAGAL INHIBITION* VENOUS CONSTRICTION* RESPIRATORY OBSTRUCTION* 23
  24. 24. 24 GAROTTING THROTTLING
  25. 25. GENERAL FINDINGS .Face is swollen and blotchy* .Eyes usually suffused and bulging* Tongue is swollen, protruding and caught * .between teeth Ligature mark which commonly depends upon * the size, type, form, etc. of the ligature. The . thinner the ligature more deep will be the mark 25
  26. 26. INTERNAL FINDINGS Bruising of the soft tissue of neck and * muscles specially underneath the ligature .mark .Injuries to blood vessels are rare in this* Injuries to hyoid bone are not commonly * .seen .Thyroid cartilages are found fractured* 26
  27. 27. MANUAL STRANGUALTION ((THROTTLING Catching or grasping of neck at the * .location of carotid sinus, by the hand This cause sudden CARDIAC ARESST * .due to vaso vagal inhibition . THE DEATH IS SUDDEN IN THIS CASE** 27
  28. 28. GENERAL FINDINGS CUTANEOUS ABRASIONS* CUTANEOUS BRUISING* BRUISING INTO LARGE STRUCTURES * OF NECK INJURIES TO HYOID BONE AND * LARYNX 28
  29. 29. WHETHER IT IS HOMICIDAL, SUICIDAL OR ACCIDENTAL SUICIDAL: It is possible to strangle * oneself .by ligature ACCIDENTAL: In case of infants at time of * birth. Children may strangled while playing. While working near a machine .one can strangled HOMICIDAL: Quite common form of * .murder 29
  30. 30. DROWNING It is a form of death in which the * atmospheric air is prevented from entering the lung by submersion of body in water or .any other liquid completely or partially The main cause of death is VASO VAGAL * INHIBITION resulting in sudden cardiac . arrest and ASPHYXIA 30
  31. 31. TYPES OF DROWNING WET DROWNING. 1 In salt water * In fresh water * DRY DROWNING. 2 SECONDARY . 3 DROWNING COLD WATER . 4 DROWNING 31
  32. 32. WHETHER IT IS HOMICIDAL, SUICIDAL OR ACCIDENTAL SUICIDAL : Most commonly used by * Indian females. Sometimes the person committing suicide tie his/her hand before jumping. In these types of cases position .of knot plays an important role HOMICIDAL : It is rare except in cases of * children, infants and person under the .effect of any drug .ACCIDENTAL : very common* 32
  33. 33. REFERENCES Modi, J.K. (1993) : Medical jurisprudence and toxicology, * . N.M. Tripathi Pvt. Ltd Krishan Vij (2001) : Textbook of Forensic Medicine, B.I. * .Churchill Livingstone Pvt. Ltd H.W.V Cox (1998) : Medical Jurisprudence and * .Toxicology, L.R. Bagga Pvt. Ltd C.K. Parikh (1990) : Textbook of Medical Jurisprudence, * Forensic Medicine and .Toxicology, CBS Publishers www.en.wikepedia.org/wiki/drowning* www.sonictr.deviant art.com/art/solid-snake-smothering* 33
  34. 34. 34
  35. 35. 35

×