Cell Injury and Accumulation Quiz

Intracellular accumulations refer to the buildup of various substances within the cytoplasm or organelles of cells. Examples include fats leading to fatty changes in parenchymal organs, atherosclerosis, and xanthoma; glycogen accumulation in glycogen storage diseases; and pigments such as anthracosis, tattooing, melanin, lipofuscin, bilirubin, and hemosiderin.

Reversible cell injury is characterized by cellular changes that can be reversed if the damaging stimulus is removed, while irreversible cell injury results in cell death. The cellular response to injury involves various adaptive processes aimed at maintaining cellular homeostasis. These include changes in cell size, number, and type, as well as alterations in cellular metabolism and function.

Fatty changes in parenchymal organs, such as the liver, can be indicative of various pathological conditions and may impact cellular function. Excessive fat accumulation can lead to organ dysfunction and compromise overall cellular health.

<p>Exogenous pigments are derived from external sources and include substances like inhaled carbon (anthracosis) and injected pigments (tattooing). Endogenous pigments, on the other hand, are internally produced and include melanin, lipofuscin, bilirubin, and hemosiderin.</p> Signup and view all the answers

<p>Glycogen plays a central role in energy storage within cells. In glycogen storage diseases, abnormal accumulation of glycogen can lead to cellular dysfunction and various health issues, affecting organs such as the liver and muscles.</p> Signup and view all the answers