All of the following statements are true regarding reversible cell injury except –
**Core Concept**
Reversible cell injury refers to a condition where cells undergo a temporary and potentially reversible form of cellular damage, often due to various insults such as hypoxia, ischemia, or toxic substances. This type of injury is characterized by distinct morphological and biochemical changes that can be reversed with prompt treatment.
**Why the Correct Answer is Right**
The key features of reversible cell injury include mitochondrial swelling, loss of cytoplasmic matrix, and an increase in the number of ribosomes. These changes are primarily due to the disruption of normal cellular metabolism, which can be reversed by restoring normal cellular function. The mitochondrial membrane potential and the activity of key enzymes such as creatine kinase are also affected in reversible cell injury.
**Why Each Wrong Option is Incorrect**
* **Option A:** This statement is incorrect as it does not specify the nature of cell injury, making it a vague and potentially true statement.
* **Option B:** This statement is incorrect as it does not accurately describe the features of reversible cell injury, which do not typically include necrosis or significant cell death.
* **Option C:** This statement is incorrect as it implies that all cell injury is irreversible, which is not the case.
**Clinical Pearl / High-Yield Fact**
Reversible cell injury is a critical concept in the field of pathology, as it highlights the potential for cells to recover from damage with prompt treatment. It is essential to distinguish reversible cell injury from irreversible cell injury, such as necrosis, which has a poorer prognosis.
**Correct Answer: B. This statement is incorrect as it does not accurately describe the features of reversible cell injury.