The correct answer is Medulla.

Key Points

• The medulla is lowest part of brain and lowest portion of brainstem.
• The medulla is connected by pons to midbrain and is continuous posteriorly with spinal cord.
• The medulla plays a critical role in transmitting signals between spinal cord and higher parts of brain and in controlling autonomic activities, such as heartbeat and respiration.

 Additional Information

The correct answer is Medulla.

Key Points

• The medulla is lowest part of brain and lowest portion of brainstem.
• The medulla is connected by pons to midbrain and is continuous posteriorly with spinal cord.
• The medulla plays a critical role in transmitting signals between spinal cord and higher parts of brain and in controlling autonomic activities, such as heartbeat and respiration.

 Additional Information

The correct answer is Medulla oblongata.

Key Points

• The medulla oblongata, also called medulla, is  lowest part of brain and  lowest portion of brainstem.
• The Medulla oblongata or simply medulla is a long stem-like structure that makes up part of brain.
• It is anterior and partially inferior to cerebellum.
• The medulla oblongata (or medulla) controls  heartbeat, breathing, and blood pressure. 
• There are three groups of neurons called respiratory centers present in  medulla oblongata and pons brain as follows:

1. Dorsal respiratory group
2. Ventral respiratory group
3. Pneumotaxis center