__________ of a tissue is an abnormal increase in the number of the cells.

Question

BlackTom AI · Accepted Answer

Hyperplasia is an increase in the number of cells in a tissue or organ, so it directly matches the phrase "an abnormal increase in the number of the cells."

1) Relevant knowledge points and concepts
- Hyperplasia: proliferation producing an increased number of cells in a tissue, often in response to a stimulus (physiologic or pathologic).
- Hypertrophy: increase in the size of existing cells, producing enlargement of the tissue or organ without increased cell number.
- Atrophy: decrease in cell size and/or number, leading to reduced tissue/organ size.
- Apoptosis: programmed, regulated cell death; reduces cell number in a controlled manner.
- Necrosis: uncontrolled cell death due to injury, typically causing inflammation.

2) Step-by-step reasoning
- The blank asks specifically for "an abnormal increase in the number of the cells." The key phrase is "increase in the number" (cell count), not cell size or cell death.
- Compare definitions: hyperplasia = more cells; hypertrophy = bigger cells (not more); atrophy = fewer or smaller cells; apoptosis/necrosis = forms of cell loss or death.
- Therefore, choose the term that denotes increased cell number: hyperplasia.

3) Calculations/intermediate steps
- No numerical calculation is required. The logical mapping is: phrase → identify whether it refers to cell number (hyperplasia) or cell size/death (others).

4) Why the correct answer is correct
- Hyperplasia explicitly defines an abnormal increase in cell number; pathologic examples include endometrial hyperplasia or benign prostatic hyperplasia.

5) Why other options are incorrect
- Atrophy: denotes reduction, opposite of increase.
- Apoptosis: programmed cell death, decreases cell number.
- Hypertrophy: increased cell size, not number.
- Necrosis: pathological cell death, not an increase.

6) Conclusion
- The correct answer is Hyperplasia, which matches the provided answer.

__________ of a tissue is an abnormal increase in the number of the cells.Single choice

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