Dating bruises in the elderly forensics
Rapid death will limit the extension and blurring of the outline which usually occurs under circulatory blood pressure. bumper, grille or headlight on pedestrian, neck ligature, blow over clothing or due to impact with a hard, patterned object with ridges/grooves.
Skin over ridges is compressed and vessels remain intact.
There are different types of wounds depending on the manner of applied traumatic force: stab wounds, incised wounds, firearm wounds etc.
Wounds in which the skin and underlying tissues are torn as a result of blunt force application are termed as lacerations.
Due to gripping by fingertips in forceful restraint Found on -limbs and face (child abuse), thighs (rape), neck (throttling (manual strangulation)), arms (forceful restraint or post mortem movement of the bodydue to a rod shaped weapon or stick.
Compression of vessels centrally, not usually damaged unless crushed onto bone.
Although heavy impact will generally cause a large bruise, severity of bruising depends on:depends on adequacy of lymphatic and venous drainage, size and depth of bruise, anatomical site, age of person (v.As stated before, an injury means a disorder of an anatomic structure (continuity) or physiological function of human tissues or organs caused by the action of different environmental factors (mechanical, physical, chemical etc.).Mechanical factors are always combined with the motion of a traumatic instrument on a human body (as in a blow) or on the contrary when the moving body strikes a fixed object or surface (as in a fall). The term is often used synonymously with wound but can have a wider use, including damage to tissues by heat, cold, chemicals, electricity, radiation, in addition to mechanical forcehas greater elastic limit than underlying fat and blood vessels making subcutaneous bruising more common than skin laceration e.g.They also stimulate the growth of endothelial, epithelial and fibroblastic cells via growth factors video Such objects inflict lacerations which are characterized by 4 main signs: star-like shape, oval or circular abrasion around the wound, plate-like hole and tissue defect in the centre of the wound. a pattern of injuries sustained by taking protective action against an anticipated trauma (accidental or assault).
A victim is known to be conscious, not completely surprised by an attack and at least partly mobile. Pinning, crushing and stretching forces result in splitting and tearing of tissues.
A flexible strap or flex is directed at the upper body , especially the face Causes bruising, abrasion, laceration over bony prominences and teeth, fractured nose & face.