Question

the permanent replacement of normal tissue by fibrous tissue is called
○ fibrosis.
○ apoptosis.
○ necrosis.
○ inflammation.
○ cystosis.

Explanation:

To solve this, we analyze each option:

• Fibrosis: Defined as the permanent replacement of normal tissue with fibrous (scar) tissue.
• Apoptosis: Programmed cell death, not related to tissue replacement with fibrous tissue.
• Necrosis: Uncontrolled cell death due to injury, not fibrous tissue replacement.
• Inflammation: A response to injury/infection, not tissue replacement.
• Cystosis: Not a term for fibrous tissue replacement (often related to cysts, not fibrous tissue).

So the correct term is fibrosis.

Answer:

A. fibrosis