| 1. | The pleurae are sometimes abbreviated or extended to form long spines.
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| 2. | The lungs are surrounded by the pulmonary pleurae.
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| 3. | Between the pleurae is a potential space called the pleural cavity containing pleural fluid.
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| 4. | Only the parietal pleurae are sensitive to pain.
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| 5. | The pleurae are clearly wider than the axis.
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| 6. | The mediastinal and central portions of the diaphragmatic pleurae are innervated by the phrenic nerves.
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| 7. | The 6 thorax segments have short pleurae.
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| 8. | The four pleurae end in spatulate spines that fit to corresponding indentations in the cephalon.
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| 9. | The pleurae are two thin membranes, one cell layer thick, which surround the lungs.
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| 10. | The side lobes of the thorax ( or pleurae, singular pleura ) have rounded ends.
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