Explanation: The rib cage encases the lungs which are the most important organs of the respiratory system. It acts like a mechanical barrier when a person injures his chest. It prevents the injury to be passed on to the lungs.
How do the ribs protect the lungs?
When you inhale, muscles between your ribs lift your ribcage helping your lungs to expand. When you exhale, your ribcage moves down, squeezing air out of your lungs. The BBC is not responsible for the content of external websites.
How ribs play a major role in protecting lungs?
1. Ribs muscles: The ribs help in the expansion and contraction of the thoracic cavity and also protect the lungs and heart. When the diaphragm expands or contracts, the thoracic (chest) cavity expands or contracts, alternately pulling in the air (inhalation) or expelling it (exhalation).
What is the purpose of the rib?
The ribs are the bony framework of the thoracic cavity. The ribs form the main structure of the thoracic cage protecting the thoracic organs, however their main function is to aid respiration.
Are your lungs under your rib cage?
Share on Pinterest The rib cage shields the heart and lungs from damage. The rib cage consists of 24 ribs, 12 on either side, and it shields the organs of the chest, including the heart and the lungs, from damage.
What happens to the muscles of the ribcage during inhalation?
the external intercostal muscles relax and the internal intercostal muscles contract, pulling the ribcage downwards and inwards. the diaphragm relaxes, moving back upwards. lung volume decreases and the air pressure inside increases. air is pushed out of the lungs.
Which are the true ribs?
The true ribs are the ribs that directly articulate with the sternum with their costal cartilages; they are the first seven ribs. … However, the floating ribs are the ribs that do not articulate with the sternum at all; they are the distal two ribs. The true ribs articulate with the sternum by the sternocostal joints.
Why are ribs 8/12 called false ribs?
Ribs 8–12 are called false ribs (vertebrochondral ribs). The costal cartilages from these ribs do not attach directly to the sternum. … Thus, the cartilage of rib 10 attaches to the cartilage of rib 9, rib 9 then attaches to rib 8, and rib 8 is attached to rib 7.
Which bones protect the lungs?
The ribs are connected to the sternum with a strong, somewhat flexible material called cartilage. The rib cage help protects the organs in the chest, such as the heart and lungs, from damage.