Based on the information provided, the question "What is the second most important organ?" is somewhat ambiguous, as "importance" can be subjective and depend on the context. However, considering the reference material provided, we can interpret this question as asking which organ is next in importance to the brain, based on the table given.
The provided table ranks organ importance based on their functions. The brain is listed as controlling all other organs, so it could be considered the most important. Following that, the heart is the second organ listed, and we can interpret it as second most important based on the table's structure.
Here's a breakdown of the organ functions mentioned:
| Organ | Functions |
|---|---|
| Brain | Controls all other organs and their functioning |
| Heart | Pumps blood to deliver a continuous supply of oxygen and other nutrients to other organs |
| Lungs | Helps oxygen breathed air to enter the red cells in the blood |
Based on this, the heart is considered the second most vital organ, as it ensures the continuous supply of blood, oxygen and nutrients to all other organs.
Therefore, the answer is the heart.
