Questions and Answers
Cell death can occur through three different ways.
False
Hyaline degeneration is characterized by the accumulation of fat within cells.
False
Apoptosis is a passive and unexpected death of cells.
False
Cell adaptation is a possible outcome when a cell comes in contact with injurious agents.
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Functional changes in cells are often termed 'degenerative'.
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Necrosis always elicits an inflammatory reaction.
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Mucoid degeneration results in the accumulation of fat within cells.
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Cell death is a state where cells continue to carry out their functions.
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Study Notes
Cellular Injury and Death
- Cellular injury refers to harm or damage to cells caused by harmful agents (toxins, radiation, trauma, etc.) and aetiological agents, leading to changes and even cell death.
Changes in Cellular Function
- When a cell comes in contact with injurious agents, possible outcomes include:
- Adaptation to the situation
- Reversible injury
- Irreversible injury leading to cell death
- Changes can be either:
- Structural (degenerative), affecting cell organelles
- Functional (infiltration), resulting from foreign agents added to the cell
Cell Death
- Cell death occurs when cells cease to carry out their functions
- Cell death can occur through two ways:
- Necrosis: passive, unexpected death of cells, eliciting an inflammatory reaction, characterized by fluid entering the cell, followed by cell bursting
- Apoptosis: active, programmed cell death, not eliciting an inflammatory reaction, characterized by cell shrinkage and acidophilia
Degeneration
- Degeneration refers to the progressive deterioration of cells or tissues from their normal state to a less functional or structurally abnormal state
- Types of degeneration:
- Hyaline degeneration: characterized by the accumulation of a homogenous, pink, glassy material in tissues, often seen in conditions like atherosclerosis or in aging tissues
- Fatty degeneration: involves the accumulation of fat within cells, particularly in organs like the liver or heart
- Mucoid degeneration: results in the accumulation of mucin, a gelatinous substance, in tissues
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Description
This quiz covers the effects of harmful agents on cells, including adaptation, reversible and irreversible injury, and cell death.
