Time taken in breathing ___

How the majority of oxygen gets transported?

In which part of lungs gaseous exchange takes place in human?

____ prevents the food from entering into the glottis during swallowing.

Which of the following part is known as the soundbox of our body system?

The amount of air inspired or expired during normal breathing is_________ ml.

The common passage for both food and air is called the esophagus.

What happens to RBC of human blood at high altitude?