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 5- Liability to sepsis 6- Healing

3 months: Scar becomes coppery. 6 months: Scar is thin and pale, 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,

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 .

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

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

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

Abrasion Definition Causative instrument Types linear Sliding Pressure Impact Bite

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

Contusions Definition Types Factor affecting size ML importance

Contused wounds Definition Characters Deference between cut and contused W