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.
Causes of Wound Tunneling. 1  Tunneling of a wound may occur for various reasons: 2  infection- results in destruction of tissue. 3  too little/too much packing- using too much packing can degrade newly granulated tissue, while using too little packing may not absorb drainage adequately and may increase the risk of abscess formation.