Common Types Of Cell Necrosis And Their Causes

Question 1

Liquefaction necrosis

Answer 1

-Process by which dead cells liquefy under the influence of certain cell enzymes

Cause: when brain tissue dies or in certain bacterial infections in which a cavity or ulcer may develop in the infected area

Question 2

Coagulative necrosis

Answer 2

• When cell proteins are altered or denatured and the cells retain some form for a time after death

Cause: myocardial infarction (heart attack) when a lack of oxygen causes cell death

Question 3

Fat necrosis

Answer 3

-when fatty tissue is broken down into fatty acids in the presence of infection or certain enzymes

Question 4

Caseous necrosis

Answer 4

-form of coagulation necrosis in which a thick, yellowish , cheesy substance forms

Question 5

Infarction

Answer 5

-area of dead cells resulting from lack of oxygen

Question 6

Define gangrene

Answer 6

Refers to an area of necrotic tissue, usually associated with a lack or loss of blood supply that is followed by invasion of bacteria

• can be described as wet or dry
• often caused by coagulative necrosis