Question

We can voluntarily change our pattern of breathing because the respiratory centre __________.

• A. in medulla oblongata controls breathing voluntarily
• B. in medulla oblongata has connections with the cerebral cortex
• C. is situated in cerebrum
• D. in medulla oblongata and pons are connected with each other

Hint:

Think about what links the automatic breathing centre to conscious control.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept
Breathing is set automatically by the respiratory centre in the medulla oblongata, helped by the pneumotaxic area in the pons.

Step 2: Voluntary control
The medullary centre receives nerve connections from the cerebral cortex. Through these we can hold our breath or change its rate and depth for a short time.

Step 3: Compare the options
The medulla does not itself control breathing voluntarily, and the centre is not in the cerebrum. The link with the pons only helps rhythm.

Final Answer:
Voluntary change is possible because the medullary respiratory centre is connected with the cerebral cortex. \[ \boxed{\text{(B) }\text{in medulla oblongata has connections with the cerebral cortex}} \]