Question

What is correct about human respiration?

• A. About 90% of $C{O}_2$ is carried by haemoglobin as carbaminohemoglobin
• B. Neural signals from pneumotaxic centre of pons can increase duration of inspiration
• C. Workers in grinding and store breaking industries may suffer from lung fibrosis
• D. Cigarette smoking leads to inflammation of bronchi

Answer 1

The correct option is B Neural signals from pneumotaxic centre of pons can increase duration of inspiration

The pneumotaxic centre can send neural signals to reduce the duration of inspiration, thereby affecting the rate of respiration. The actions of this centre prevent the lungs from over-inflating. It also regulates the amount of air that the body takes in, in a single breath

Hence the correct answer is (B).