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Answer:
Difference Between Inhalation and Exhalation
June 24, 2017 By Rachna C 3 Comments
Inhalation_Vs_exhalation_content
Inhalation is the process of taking in air containing oxygen, while exhalation is the process of giving out rich containing carbon dioxide. This is the basic process of breathing. Here one breath involves the one complete inhalation and exhalation.
So breathing rate varies from person to person and different kind of activity they perform in a day. Though on an average, the breathing rate of an adult is 15-18 times a minute, however, it may increase up to 25 times per minute in case of heavy exercises, while running or fast walking.
There is a lot of confusion between breathing and respiration, so it can be simply understood by saying that breathing involves the process of exchanging of gases like oxygen and carbon dioxide from the lungs with the help of various respiratory organs.
While respiration is a complete biochemical process, where the cells of organisms gain energy by combining oxygen and glucose, which results in giving out carbon dioxide, ATP (adenosine triphosphate) and water.
As this article is focused on the breathing processes, which are inhalation and exhalation. Thus, we will consider the basic difference between the two with the brief description.
Content: Inhalation Vs Exhalation
Comparison Chart
Definition
Key Differences
Conclusion
Comparison Chart
BASIS FOR COMPARISON INHALATION EXHALATION
Meaning Inhalation is the process of intake of air into lungs. Exhalation is the process of letting air out from lungs.
Type of process Inhalation is an active process. Exhalation is a passive process.
The role of diaphragm They contract during the inhalation and get flattens by moving down. They relax during exhalation and turned into dome-shaped by moving up.
The role of intercostal muscle Internal intercostal muscles relaxes and external costal muscles contract. Internal intercostal muscles contract and external intercostal muscles relax.
The volume of lungs It increases during inhalation means it get inflated. It decreases during exhalation means it gets deflated.
The size of chest cavity Increases. Decreases.
It results Air rich in oxygen is taken into the blood. Carbon dioxide is pushed out.
Effect of intercostal muscles Due to the effect of intercostal muscles rib cage moves upward and outward. Due to the effect of intercostal muscles the rib cage moves downward.
The composition of air The air which is inhaled is oxygen and nitrogen mix. The air which is exhaled is carbon dioxide and nitrogen mix.
Air pressure Decrease in air pressure (below atmospheric pressure). Increase in air pressure.
Definition of Inhalation
It is also known as ‘Breathing In‘. When we breathe in or inhale the air through nostrils, it then passes through the nasal cavity, from here the air rich in oxygen reaches the lungs through the windpipe.
The lungs which are located in the chest cavity are surrounded by the ribs, which forms the cage like structure called rib-cage, and has a large muscular sheet known as a diaphragm, which lies the bottom of the cavity.
When the oxygen-rich air reaches here the diaphragm contracts or tightens and move downward. The space in the chest cavity increases, the place into which the lungs get expand.
The chest cavity also gets enlarged due to intercostal muscles present between the ribs. This help in the contraction and pulling of rib cage both outward and upward.
Explanation:
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