logo

Ask Questions, Get Answers

 
X
 Search
Want to ask us a question? Click here
Browse Questions
Ad
Home  >>  JEEMAIN and AIPMT  >>  Biology  >>  Human Physiology
0 votes

Regarding Expiration - choose the incorrect statement :

image
( a ) Relaxation of the diaphragm and the inter-costal muscles returns the diaphragm and sternum to their normal positions
( b ) Reduced pulmonary volume. This leads to an increase in intra-pulmonary pressure to slightly above the atmospheric pressure
( c ) Relaxation of the diaphragm and the inter-costal muscles increases the thoracic volume
( d ) Relaxation of the diaphragm and the inter-costal muscles reduces the pulmonary volume
Can you answer this question?
 
 

1 Answer

0 votes
(C) is the right answer.

Relaxation of the diaphragm and the inter-costal muscles returns the diaphragm and sternum to their normal positions and reduce the thoracic volume and thereby the pulmonary volume. This leads to an increase in intra-pulmonary pressure to slightly above the atmospheric pressure causing the expulsion of air from the lungs, i.e., expiration.
answered Mar 26, 2014 by pady_1
 

Related questions

Ask Question
student study plans
x
JEE MAIN, CBSE, NEET Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App
...