What does atrophy refer to in biological terms?

Atrophy refers to the decrease in cell size, which can occur due to various factors such as decreased workload, loss of innervation, inadequate nutrition, or decreased blood flow. This biological process results in a reduction of the overall size of tissues or organs, as it involves the shrinking of individual cells. Atrophy can lead to diminished function and may also indicate an underlying health issue. Understanding atrophy is essential in pathophysiology, as it can be a symptom of various diseases and conditions, reflecting both the state of cellular health and the overall status of the tissue.