Question

Table 10.2: Effect of breathing on the chest size of some classmates Name of the classmate Size of the chest (cm) During inhalation During exhalation Difference in size ​

Answer 1

Answer:

Normally, a 2-5" of chest expansion can be observed. Any lung or pleural disease can give rise to a decrease in overall chest expansion.

Step-by-step explanation:

During inhalation, ribs move up and outwards and diaphragm moves down. ... During exhalation, ribs move down and inwards, while diaphragm moves up to its former position. This reduces the size of the chest cavity and air is pushed out of the lungs.

Answer 2

Answer:

CLASS 7 CHAPTER 10 SCIENCE