Articles from Aids To Forensic Medicine And Toxicology
Sale Of Poisons; Scheduled Poisons
Death By Strangulation
Conium And Calabar Bean
Cause Of Death In The Foetus
Assault Murder Manslaughter Etc
Death From Lightning And Electricity
Mercury And Its Preparations
Death By Suffocation
Signs and Symptoms.--There are usually three stages:
1. Exaggerated respiratory activity; air hunger; anxiety; congested
appearance of face; ringing in ears.
2. Loss of consciousness; convulsions; relaxation of sphincters.
3. Respirations feeble and gasping, and soon cease; convulsions of
stretching character; heart continues to beat for three to four minutes
after breathing ceases.
Post-Mortem Appearances--External.--Cadaveric lividity well marked;
nose, lips, ears, finger-tips almost black in colour; appearance may be
placid or, if asphyxia has been sudden, the tongue may be protruded and
eyeballs prominent, with much bloody mucus escaping from mouth and nose.
Internal.--The blood is dark and remains fluid; great engorgement of
venous system, right side of heart, great veins of thorax and abdomen,
liver, spleen, etc. Lungs dark purple in colour; much bloody froth
escapes on squeezing them; mucous lining of trachea and bronchi
congested and bright red in colour; air-cells distended or ruptured;
many small hæmorrhages on surface of lungs and other organs, as well as
in their substance (Tardieu's spots), due to rupture of venous
capillaries from increased vascular pressure.
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