asphyxia hypoxia Definition:  cessation of effective respiration

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Presentation transcript:

asphyxia hypoxia Definition:  cessation of effective respiration Causes: obstruction of respiratory passages circulation is terminated  02  & CO2 Types of obstruction: strangulation:  hanging  by ligature  manual strangulation/throttling suffocation smothering drowning crush asphyxia/traumatic asphyxia choking Hypoxic Anaemic Stagnant Hystotoxic: - extra-cellular - pericellular - substrate - metabolite asphyxia hypoxia

 cyanosis on fresh corpse 2 ■ pressure on the neck/interruption on the air passage  cyanosis on fresh corpse  systemic congestion on the lung and & dilatation of the right heart  blood will remain liquid  pulmonary edema  Tardieu spot  bleeding of mucosa pharynx/dorsal cricoid ■ vagal inhibition (reflex cardiac arrest):  ventricular fibrillation  tachycardi ■ broken neck bone

DROWNING 3  Asphyxia + electrolite problems  vagal inhibition  laryngeal spasm: - accidents - torture, presumed dead, thrown into water - infanticide - suicide (rare cases) Consciousness decreases after 3 – 10 minutes, resuscitation might help gravitation density< density decomposition/gas fragmentation/rot      FRESH WATER -haemodillution  haemolysis plasm: K  , Na  liquid in circulation   systole   ventricular fibrillation - cerebral anoxia SEA WATER -haemoconcentration: -pulmonary edema -relatively constant systole -hematocrit , Na plasm  anoxia myocard blood viscosity  -cerebral anoxia heart failure

External Exam. Internal Exam. 4 Temperature  Profuse froth on Trachea & oesophagus Diatome test Paltauf Pulmonary edema emphysema aquosum hydroaerique Temperature  Livor mortis on chest and head Cutis anserina Profuse froth on the nose and mouth areas Pseudo foam decomposition Tardieu spot Semi erection Cadaveric spasm intra vital & post mortal injuries washer woman hand Internal Exam.