B. Loss of consciousness.
C. Head injury.
D. Vagal inhibition.
Ans:D. Vagal inhibition.
The mode of death shown in the picture above represents drowning in cold water.
TYPES OF DROWNING
- In this the water is inhaled into lungs . This is of two types, i.e. Fresh water and Salt water drowning.
- Haemodilatation (Fresh water drowning)
- Haemoconcentration (Salt water drowning)
- Water does not enter the lungs, but death results from immediate sustained laryngeal spasm due to inrush of water into the nasopharynx or larynx.
Secondary Drowning or Near Drowning/Postimmersion Syndrome
- Near Drowning is defined as initial survival at least beyond 24 hours of an individual after suffocation due to submersion in fluid. It does not necessarily lead to long-term survival and is associated with secondary complications, which require further medical management.
Immersion Syndrome or Hydrocution
Hydrocution or immersion syndrome refers to sudden death in water due to vagal inhibition as a result of:
- cold water stimulating the nerve endings of the surface of the body
- horizontal entry into the water with a consequent strike on the epigastrium
- cold water entering eardrums, nasal passage, and the pharynx and larynx which cause mucosal nerve ending stimulation.