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.
Called also injury and trauma. blowing wound open pneumothorax. contused wound one in which the skin is unbroken. wound drain any device by which a channel or open area may be established for the exit of material from a wound or cavity. See also wound healing. wound healing restoration of integrity to injured tissues by replacement of dead tissue with viable tissue; this starts immediately after an injury, may continue for months or years, and is essentially the same for all types of wounds.