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Primary and Accessory Respiratory Muscles and Description about Thoracic Lid, Diaphragm, Surfactant, Compliance and Stiffness of Lungs

Dr. Mohan Naidu K., Dr. Sridevi V., Dr. Muralinath E., Dr. Manjari .P, Dr. Chapalamadugu C. Kalyan, Dr. Sravani Pragna K., Dr. M. Guru Prasad, Nikhil J., Dr. Sony Sharlet

Abstract


Normally, respiratory muscles play a major role in respiratory movements. Generally respiratory muscles are if two types such as primary respiratory muscles and accessory respiratory muscles. Inspiration shows its effect on thoracic cage. The change in the size of thoracic cavity is related to the movements of four units of structures namely thoracic lid, upper costal series, lower costal series and diaphragm. Particularly during inspiration, because of the enlargement of thoracic cage, the negative pressure is enhanced in the thoracic cavity. A surface-acting substance or chemical known as a surfactant is necessary to reduce a fluid's surface tension. Compliance exhibits it’s capability of the lungs and thorax. Compliance plays a major role in measuring the stiffness of lungs. Compliance is done, because of more stiffness of lungs. Compliance is of two type’s namely static compliance and dynamic compliance.

 


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References


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