214 MEDICAL JURISPRUDENCE "been partially withdrawn after it pierced the tissues, and thrust again in a new direction. Sometimes, it is argued that a punctured wound may have been caused by a fall on a sharp pointed piece of an earthenware pot or broken glass. In that case the edges of the wound are irregular and more or less bruised, 'and fragments of such articles may be found embedded in the soft tissues. 3. Lacerated Wounds.—These are produced by blows from blunt objects $nd missiles, by violent falls on sharp and hard projecting surfaces, by machinery and railway accidents, by the wheels of a vehicle, by the claws, teeth or horns of animals and by projecting nails. These wounds do not generally correspond in shape or size to the weapon producing them. Their edges are torn, jagged, irregular and swollen or contused. The tissues are torn and the sk'n beyond the seat of injury is ecchymosed and the under- - lying bones are likely to be fractured, while the internal organs may be ^injured. Foreign bodies, such as earth, grease, machine oil, cinders, hair fibres of clothing, etc. are frequently found in the wounds. When produced by a blunt weapon, such as a ' club (lathi), crowbar, stone, brick, etc., a lacerated wound is usually accompa- ired by a considerable amount of bimsing of the surrounding ancTunderlymg tissues, and has inverted and irregular edges. Haemorrhage in lacerated wounds is, as a rule, not ex- .tensive owing to the fact that the arteries are not cut evenly, but are torn across irregularly so as to facilitate clotting of the blood. In lacerated wounds of the scalp the temporal arteries often stmrt as freely and forcefullv as when cut cleanly. These arter;es being firmly bound are unable to contract, and may, there- fore, srjurt and continue to bleed for a long time. In a quarrel with her husband a woman sustained several injuries on her face and head. One of these was a lacerated wound on the right temple. Bloodstains were found on the ceiling at a distance of four feet from her bed. These were caused by the spurting of the divided right anterior temporal artery. A young man had been struck on the right temple causing a lacerated wound. Blood spurted to a distance of three feet and a quarter from the place where he was standing at the time of the assault.4 Occasionally, wounds produced by a blunt weapon or by a fall may look Hke_ incised wounds when inflicted on tense structures covering the bones, such as the" scalp, eyebrow, etc.,"t>r by a fall on the knee or elbow when the lirnb is flexed. But the edges of such wounds will be found irregular with a certain amount of bruising, and small strands of tissue may be seen at the bottom bridging across the margins, if examined with a hand Fig. 88.—Lacerated wounds of forearm caused by broken glass pane, (From a photograph lent kindly by Dr. G. B, Sahay.) 4. Peterson, Haines and Webster, Leg. Med. and Toxic., Ed. II, Vol. I, p. 294.