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Get Answers to all your Questions
Consider the following events
I. Relaxation of internal intercostal muscles
II. Contraction of external intercostal muscles
III. Contraction of internal intercostal muscles
IV. Increase in pressure in alveoli
V. Upward and outward movement of rib cage
VI. Contraction and flattening of diaphragm
VII. Decrease in volume of thorax cavity
How many of these events are involved in causing inspiration?
Option: 1
3
Option: 2
5
Option: 3
2
Option: 4
4
Answers (1)
Mechanism of Breathing: Inspiration -
Hence, the correct option is d. 4. The events occurring during inspiration are as follows
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