The figure given below shows a small part of human lung where exchange of gas takes place. In which

Match the Following: (a) Asthma 1. Inflammation of nasal tract(b) Bronchitis 2. Spasm of tracheal mu

The rate of breathing is primarily controlled by the concentration of:

The respiratory rhythm centre is located in the:

Every 100 mL of deoxygenated blood delivers approximately ______ of CO2 to the alveoli.

CO2 is transported in three ways: as carbonic acid, as carbamino-haemoglobin, and as bicarbonates. T