Pulmocutaneous circulation

What Is Pulmocutaneous Circulation?

Pulmocutaneous circulation is a special way that blood moves in some animals called amphibians. Amphibians include frogs, toads, and salamanders. This blood flow helps these animals breathe.

How It Works

In amphibians, blood travels from their heart through special tubes called vessels. One important part of the heart is the ventricle. From there, the blood goes to a tube called the conus arteriosus. Then, it moves into another tube named the truncus arteriosus.

Why It Is Important

The blood then splits into two paths. One path, called the pulmocutaneous circuit, sends blood to the animal’s lungs and skin. Here, the blood picks up oxygen and gets rid of waste. This helps the amphibian stay healthy and full of energy. The other path, the systemic circuit, sends blood to the rest of the body.

Fun Fact

Amphibians can breathe through their skin as well as their lungs! This is why the pulmocutaneous circulation is so important for them. It helps them get the oxygen they need in many different ways.