Chapter 34 The Circulatory Respiratory and Excretory Systems
Chapter 34 The Circulatory Respiratory and Excretory Systems
Chapter 34 The Circulatory Respiratory and Excretory Systems
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<strong>Chapter</strong> <strong>34</strong><br />
<strong>Circulatory</strong>, <strong>Respiratory</strong>, <strong>and</strong> <strong>Excretory</strong> <strong>Systems</strong><br />
<strong>34</strong>.2 <strong>Respiratory</strong> System<br />
Each bronchus branches into smaller tubes<br />
called bronchioles.<br />
Each of these small<br />
tubes continues to<br />
branch into even<br />
smaller passageways,<br />
which end in<br />
individual air sacs called alveoli.
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