<prompt> Strength of wound after 2 months is governed by-Collagen cross linkingExcess collagen depositionBoth a and bNone of the above  <response>: Ans. is a i.e., Collagen cross linking Wound strengtho At the end of first week, wound strength is approximately 10 that of normal skin,o Strength increases rapidly over the next 4 weeks.o At the end of third months, the strength reaches a plateau of about 70 to 80 of the normal skin, a condition that may persist for life.So, Remember following factso Tensile strength never reaches the normal strength of unwounded tissue i.e., 100.o Maximum strength is achieved by the end of 3 months.o Maximum strength is 70-80 of normal tissue.How does tensile strength change with time ?o During first 2 months it is due to excess collagen deposition.o After that it is due to structural modification of collagen, i.e., cross-linking, increased fiber size. 