A: The function of the cartilaginous rings of the trachea is to stabilize the trachea and keep it rigid while allowing the trachea to expand and lengthen when the person breathes. If the trachea was not supported in this way, it would simply collapse because of the pressure of the chest.
HCM remains the most common cardiovascular genetic disorder, occurring in at least 1 in 500 people in the general population. 7 HCM is a primary inherited disorder of the myocardium characterized by hypertrophy, usually of the left ventricle, in the absence of other loading conditions such as hypertension.
Gene Variant Linked to Plaque. The newly discovered gene variant ADAMTS7 is one of about a dozen genes associated with heart disease risk identified within the last few years, Reilly says.âMost are associated with plaque buildup [known medically as atherosclerosis ] and not with other known heart disease risk factors,â he says.n an effort to identify genes specific for heart attack, they also compared the DNA of almost 5,800 CAD patients who had a history of heart attack with 3,600 patients who had no such history. A Visual Guide to Heart Disease.