Posted by on Nov 28, 2018 in Breathing Facts | 0 comments

Muscles Involved In Breathing

The respiratory system is very important in our body. This is because it’s the only part that ensures there is sufficient supply of air in and out of our body. However, during exercise, we engage in vigorous activities which require extra energy to keep us moving.

There are other websites that discuss the respiratory system in more depth. You can view their website and learn more about the respiratory system.

We shall discuss all the muscles involved in breathing period.

Diaphragm muscles

This is the main muscle involved in our breathing. Whenever there is a contraction of the Diaphragm, there will be a decrease in the pleural pressure. As a result of this, there will be a decrease in the pressure of the alveolar. This assist air to be drawn into the alveoli from the mouth.

Muscles Involved In BreathingInhalation 

External Intercostal Muscle: This muscle is very important during active exercises. Since you have to inhale some air, the External intercostal muscle will ensure that the lower ribs are raised outward and up. This raises the anteroposterior and lateral measurement of your thorax. There are also Sternomastoids Muscles and Scalene Muscles which aid in the inhalation process. They push out and raises our upper ribs together with the sternum.

Exhalation 

Transversus Abdominus, External Obliques. Rectus Abdominus, and Internal Obliques: These muscles are very useful when we have done a lot of exercises and will need to exhale some air. With their perfect location angle where they can easily pull down, they will combine to ensure that the exhalation process is successful.

During the contraction of these muscles, there exists a pressure increase in the intra-abdominal. This ensures that the diaphragm is pushed up resulting in an increase in the pleural pressure. The end result is that the alveolar pressure will increase hence allowing more air to be pushed out of the body

There are also assessor muscles involved in breathing, and most of them occur around the neck region. They include; Posterior Muscles, Medius Muscles, Scalenus Anterior Muscles, and the Sternocleidomastoid Muscles.

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