Write the two step involved in respiration
Answers
Answered by
2
There are two steps inhalation and exhalation.
INHALATION :
1) Diaphragm moves downwards.
2) Ribs are pulled out by the contraction of intercoastal muscles.
3) Volume of thoracic cavity increases.
4) Volume of lungs increases.
5) Air pressure inside the lungs decreases.
6) The outer air moves into lungs.
EXHALATION : Each of the above mentioned steps gets opposite.
INHALATION :
1) Diaphragm moves downwards.
2) Ribs are pulled out by the contraction of intercoastal muscles.
3) Volume of thoracic cavity increases.
4) Volume of lungs increases.
5) Air pressure inside the lungs decreases.
6) The outer air moves into lungs.
EXHALATION : Each of the above mentioned steps gets opposite.
Similar questions