Which of the following does NOT occur during inspiration ?

Step-by-step solution

During inspiration, the diaphragm contracts and becomes flat, increasing the volume of the thoracic cavity in the antero-posterior axis. The external intercostal muscles contract, lifting the ribs and sternum upward and outward, which increases the volume of the thoracic cavity in the dorso-ventral axis. The overall increase in thoracic volume leads to an increase in pulmonary volume. According to Boyle's law, an increase in volume results in a decrease in pressure. Thus, the intra-pulmonary pressure decreases belo