Question

Describe the changes that take place (i) around the rib cage (ii) diaphragm
(iii) chest cavity, during inspiration. State the effect of these changes.

Please Answer Me Fast Its Important ​

Answer 1

ANSWER:

1. The muscles attached to the rib cage contract, expanding chest cavity
2. The Diaphragm contracts and moves downwards increasing the space in chest cavity
3. The chest cavity expands and creates a partial vaccum because of which we sick in air

Answer 2

ANSWER

1) The muscles attached to the rib cage contract, expanding chest cavity.

2) The Diagram contracts and moves downwards increasing space in the chest cavity.

3) The chest cavity expands and creates a partial vaccum because of which we sick in year.