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Chapter 42

BIOL 186 Chapter Notes - Chapter 42: Heart Valve, Aorta, Osteichthyes

Course Code
BIOL 186
Gregory Beaulieu

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Single Circuit and pump
- Bony fish, rays, sharks
- One circuit
- One pump (heart)
o Two chambers
- In the single circuit, the heart only receives deoxygenated blood
Double circuit and pump
- Frogs
- Two circuit (pulmonary, systemic)
- One pump (heart)
o Three chambers
Two atria
One ventricle
- There is mixing between the pulmonary and systemic blood
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