Question

what is that word which divides heart into two atrium?​

Answer 1

Answer:

septum

Explanation:

The heart is made up of four chambers. The upper two chambers are called atria (singular: atrium) and the lower two are known as ventricles (singular: ventricle). Muscular walls, called septa or septum, divide the heart into two sides.

Answer 2

Septum..

The heart is made up of four Chambers.. The upper two Chambers are called atria {singular; atrium} and then lower two are known as ventricles {singular ventricle}.. Muscular walls called septa or septum, divided the heart into two sides......