Which of the following terms means removal of a lung?

Question

BlackTom AI · Accepted Answer

Pneumonectomy combines the Greek root pneumon- meaning "lung" with the surgical suffix -ectomy meaning "removal," so it literally denotes surgical removal of a lung.

1. Relevant knowledge points and concepts
- Prefix/root: pneumon- (from Greek pneumon) = lung.
- Suffix: -ectomy = surgical excision or removal.
- Medical terminology is built by combining roots and suffixes to describe procedures (e.g., appendectomy = removal of the appendix).
- Distinctions: lobectomy = removal of a lobe of an organ (for the lung, one lobe); pneumonectomy = removal of an entire lung.

2. Step-by-step reasoning
- Identify the components of candidate terms: find the root that indicates the organ and the suffix that indicates the action.
- For “pneumonectomy”: pneumon- (lung) + -ectomy (removal) = removal of a lung.
- Compare to similar terms to ensure specificity: lobectomy refers to removing a lobe (not the whole lung); pneumonitis refers to inflammation (-itis), pneumothorax refers to air in the chest (thorax), not removal.

3. Intermediate steps (word analysis)
- pneumon + ectomy → pneumonectomy
- pneumon = lung; ectomy = excision/removal
- Thus pneumonectomy = excision/removal of the lung

4. Why the correct answer is correct
- The suffix -ectomy always denotes surgical removal, and the root pneumon- specifically names the lung. No other standard medical term that uses those morphemes denotes anything other than removal of a lung. Clinically, pneumonectomy is the accepted term for complete surgical removal of one lung (commonly performed for large or centrally located lung cancers).

5. Why other common options would be incorrect
- Lobectomy: removal of a lobe of the lung, not the entire lung.
- Pneumonitis: inflammation of lung tissue (-itis), not removal.
- Pneumothorax: presence of air in the pleural space (-thorax), not a removal procedure.
- Thoracotomy: surgical incision into the chest, not removal of the lung itself.

6. Conclusion / confirmation
- Therefore, the correct term meaning removal of a lung is Pneumonectomy, which matches the provided answer.

Which of the following terms means removal of a lung?单项选择题

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