comparison of normal and pectus posture. pectus excavatum has a sunken chest. pulmonology about restrictive

abnormally airflow amyloidosis anterior biology body breathing cage carinatum cartilage character chest comparing comparison deformity disease education excavatum fibrosis genetics human illustration infographics knowledge lung male medical patient pectus poor problem pulmonary pulmonology restrictive rib spine sternum structure sunken symptoms thoracic torso vector wall