Question

What artefacts do we commonly see when we freeze/ thaw carcasses :

1. diffuse red /pink colour (eg. brain surfaces): due to diffusion of haemolytic blood during thawing
2- also leaves a scant amount of blood-tinged fluid eg. in abdominal, thoracic cavities + pericardial sac

Answer 1

When freezing and thawing carcasses, we commonly observe a diffuse red or pink color and blood-tinged fluid in the cavities. These artifacts occur due to damage caused by the freezing and thawing process.

Step-by-step explanation:

When we freeze and thaw carcasses, we commonly see two artifacts. The first is a diffuse red or pink color, such as on the brain surfaces, which is due to the diffusion of hemolytic blood during the thawing process. The second artifact is a scant amount of blood-tinged fluid appearing in abdominal, thoracic cavities, and the pericardial sac. These artifacts occur because freezing and thawing can cause damage to cells and tissues, leading to the release of blood and fluids.