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Respiratory System : Pamela Sanchez Period 2 - Coggle Diagram

- - - - Secondary bronchi: branches of the main bronchi; each enters
        a lobe of a lung
      - Tertiary bronchi: branches of the lobar bronchi; each enters a
        segment of a lung
      - Primary bronchi: first branches of the bronchial tree; branch
        directly off the trachea; each leads to a lung
  - - - Parietal pleura: outer layer; lines the thoracic cavity
      - Visceral pleura: inner layer; attached to the surface of each lung