Acetic acid shrinking action does not influence tissue preservation.

• A. True
• B. False
• C. Both
• D. Neither

Answer: (B)

The effect of acetic acid on fixation can cause tissue shrinkage artifacts, which directly influence how well tissue morphology is preserved. Acetic acid acts as a rapid coagulant fixative, precipitating proteins and altering osmotic balance. This can cause cells and extracellular components to contract, distorting size, relationships, and overall architecture. Because preserving accurate tissue structure is the goal of fixation, any shrinking action from acetic acid is a factor in preservation quality. Therefore, the statement is not true; the shrinking action does influence tissue preservation.