Why is the interventricular septum located in the heart of birds and mammals? What are its functions?

Interventricular septum:

1. The interventricular septum is a strong wall.
2. It separates the ventricles from each other.

The functions of interventricular septum:

1. The interventricular septum is found in the hearts of birds and mammals.
2. They have a 4-chambered heart with two atria and two ventricles.
3. In these chambers oxygenated and deoxygenated blood is separated.
4. The interventricular septum serves as a barrier between these two.
5. The interventricular septum assists in ventricular pumping function.