Which is not a type of circulation? Pulmonary Systemic Atrial

## Step 1<br />The question is asking us to identify which of the given options is not a type of circulation in the human body. <br /><br />## Step 2<br />In the human body, there are two main types of circulation: pulmonary and systemic. <br /><br />### **Pulmonary circulation** <br />is the process where blood is pumped from the heart to the lungs and back. This is where the blood gets oxygenated.<br /><br />### **Systemic circulation** <br />is the process where oxygen-rich blood is pumped from the heart to the rest of the body and back. This is where the oxygen is delivered to the body's tissues.<br /><br />## Step 3<br />The term "atrial" refers to the atria, which are the two upper chambers of the heart. However, there is no specific "atrial circulation". The atria are involved in the overall circulatory system, but they do not represent a separate type of circulation.