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A-Wounds caused by sharp instruments:

A-Wounds caused by sharp instruments:. Incised (Cut) wounds. Stab wounds. Stab penetrating wounds. Transfixing wounds. Defense wounds. I-Incised (cut) wound:. Definition : Characters: 1- The edges 2- The length 3- Gaping of the edges 4- Bleeding

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A-Wounds caused by sharp instruments:

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  1. A-Wounds caused by sharp instruments: • Incised (Cut) wounds. • Stab wounds. • Stab penetrating wounds. • Transfixing wounds. • Defense wounds

  2. I-Incised (cut) wound: • Definition : • Characters: 1- The edges 2- The length 3- Gaping of the edges 4- Bleeding 5- Liability to sepsis 6- Healing

  3. Its age can be determined to know the time of its infliction by histological examination • 30 minutes – 4 hours: Margination of polymorph nuclear leucocytes • 48 hours: Pus may be present if sepsis occurs. • 10-15 days: Complete healing by primary intention if no sepsis. • 3 weeks: Red scar . • 3 months: Scar becomes coppery. • 6 months: Scar is thin and pale,

  4. Stab wound: • Definition: • Unibladed knife or Bibladed knife • Characters: • More deep than long • The edges • The shape of the wound may be changed if • They are very dangerous • A broken tip of the weapon may be found in the wound .

  5. Types of stab wounds: • Ordinary stab wounds . • Punctured wounds • Penetrating wounds (3PMS) • Transfixing wounds

  6. Fabricated wound: • Definition • Characters: Defense wounds Definition: 1- Injuries sustained by grasping the weapon: 2- Injuries sustained during raising the hand

  7. 2- Wounds caused by blunt instruments: • Abrasions. • Bruises (contusion). • Lacerations.

  8. Abrasion • Definition • Causative instrument • Types • linear • Sliding • Pressure • Impact • Bite

  9. ML importance of abrasions • Violence • Its shape • Its site • Its age • Cut and contused wounds

  10. Contusions • Definition • Types • Factor affecting size • ML importance

  11. Contused wounds • Definition • Characters • Deference between cut and contused W

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