Principles of Animal Physiology
Principles of Animal Physiology
Principles of Animal Physiology
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
<strong>Principles</strong> <strong>of</strong> <strong>Animal</strong> <strong>Physiology</strong><br />
Respiratory System<br />
Air Respirers<br />
▪ Bimodal breather - Frogs g<br />
▸ From eggs, laval stages have gills<br />
♦ Uses lungs g & skin to breathe<br />
♦ Uses buccal pump to force air into lungs (like fish)<br />
♦ Several inspiratory oscillation needed to fill lungs<br />
♦ One long exhalation empties lungs<br />
♦ O2 intake mainly through lungs<br />
♦ CO CO2 elimination i i i through cutaneous