Asphyxia Questions

Asphyxia 1. Explain how visceral congestions occurs in asphyxia deaths. 2. Under what circumstances might one expect to find petechiae of the conjunctiva and sclera? 3. When petechaie become larger or confluent they are called ecchymoses, describe a circumstance where you might expect this to occur. 4. What are three categories of asphyxia death. 5. List 7 general forms of suffocation and give an example of each. a. Entrapment b. Environmental suffocation c. Smothering d. Choking e. Mechanical asphyxia (traumatic/positional/riot crush) f. Traumatic with smothering (overlay/ Burking) g. Suffocating gases (methane, CO2) 6. List and describe three forms of strangulation a. Hanging b. Ligature strangulation c. Manual strangulation 7. Jugular veins 4.4llbs, carotid artery compression occurs at 11lbs, the trachea 33lbs, vertebral arteries 66lb; describe how any of this makes sense and matters… List 4 circumstances when you would expect to find fractures of the cervical spine in a hanging? 8. Describe the features of a typical suicidal hanging furrow? 9. List five features consistent with manual strangulation. 10. List three chemical asphyxiants and three suffocating gases and explain the difference between a suffocating gas and a chemical asphyxiant. 11. Describe 5 features of sexual asphyxiation. 12. Describe 5 features of crucifixion and explain the mechanisms leading to death. 13. Describe the differences between a choke hold and a carotid hold used by law enforcement personnel. 14.