The main muscles of inspiration are the diaphragm, external intercostal muscles, and parasternal intercartilaginous muscles. However, the diaphragm is probably the single most important muscle. The accessory muscles of inspiration are the sternocleidomastoid and scalenus. Unforced expiration is a passive process and requires relaxation of the above muscles. Forced expiration requires the internal intercostal muscles, rectus abdominis, external oblique, internal oblique and the transversus abdominis. Below is a web address that you can go to that has a good explination and animations of the process of breathing. http://www.ivimeds.org/intralibrary/open_virtual_file_path/i4088n13902t/RibMovements.swf drazx is the original author of this answer hey i am so conffused : so what do the rib muscles do during all of this you still havent answerd it ??? i really need halp plaease write back !!!! ASAP !!!
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∙ 14y agoWiki User
∙ 9y agothe lungs
The lungs are inflated and deflated by the movements of the ribcage (unless you are a professional singer and use your diaphram). The Intercostal Muscles which lie between the ribs cause the ribcage to rise and fall.
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∙ 13y agoDiaphragm
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∙ 13y agodiaghram
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∙ 13y agoLungs
The main organ in the respiratory system the lungs.
The respiratory system is the system that handles breathing.
The trachea is the main trunk of the respiratory system. It is the central passageway from which the respiratory tree branches.
your lungs are probably muscles so yea
No but it controls it. The brain is the main part of the nervous system. The lungs are the main parts of the respiratory system.
The Respiratory System regulates breathing and gas exchanges within an organism. In humans, this system includes the lungs, airways, and respiratory muscles.
lower and upper respiratory system
the main organ of the muscular system is the muscles
Abdomine (Stomach Muscles)
the diaphragm and specialized muscles
The main organs of the respiratory system are the lungs. The main organs of the circulatory system are the heart, blood, and blood vessels.
the respiratory system