1. 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

2.  cyanosis on fresh corpse2
■ 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

3. 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

4. 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.