Question

Describe the mechanism of breathing in man (class 10)

Answer 1

mechanism of breathng in human

1. Breathing occurs involuntarily but its rate is controlled by the brain.
2. Breathing is a complex mechanical process involving muscular movement of thoraxic cavity & lungs.
3. The space of thoraxic cavity increases or decreases by the movement of intercoastal muscles.
4. The action is controlled by the contraction and expansion of the diaphragm.