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.
The most common genetic disorder of HDL-C is familial hypoalphalipoproteinemia (FHA), defined as HDL-C levels below the 10th percentile for age and gender (HDL-C levels between 20 and 40 mg/dl) and a family history of low HDL-C levels in at least one first-degree relative (20, 29).he HDL-C levels in the lowest and the highest deciles of the genotype score were 58 mg/dl and 46 mg/dl, respectively. Hence, the difference in plasma HDL-C levels between the most âdeleteriousâ and the most âfavorableâ genetic risk score was 12 mg/dl.