The surname Murchison was first found in Inverness, where they held a family seat from very ancient times. They are believed to be descended from Murdoch, a natural son of Angus Mor of Islay of the Clan Donald.
Tunneling means that a wound has channels extending from the central injury into the surrounding tissue, such as muscle and skin. These tunnels inhibit the wound's healing rate, as the flesh is unable to maintain contact long enough for the mending process to initiate.
incised wound one caused by a cutting instrument. lacerated wound one in which the tissues are torn. open wound one that communicates directly with the atmosphere. penetrating wound one caused by a sharp, usually slender, object that passes through the skin into the underlying tissues.ny device by which a channel or open area may be established for the exit of material from a wound or cavity. See also drain, drainage, wound healing (below). wound healing. the restoration of integrity to injured tissues by replacement of dead tissue with viable tissue.