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Ventral Body Cavities: Which Cavities and Serous Layer Does a Lung Penetration Cross?

Identify the nested ventral, thoracic, and pleural cavity names and the first serous layer in the textbook lung-penetration scenario.

Question

If a bullet were to penetrate a lung, which three anterior thoracic body cavities would it enter, and which layer of the serous membrane would it encounter first?

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Evidence boundary

This answers both requests in OpenStax Anatomy and Physiology 2e, Chapter 1 Critical Thinking Question 39. The prompt does not supply an entry point, direction, imaging, or a wound track. The membrane order assumes penetration from the chest wall toward a lung. The three cavity names are nested anatomical classifications, not proof of three separate spaces or a reconstruction of any actual injury.