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.
von Willebrand Disease (vWD) is the most commonly inherited bleeding disorder in dogs and has been reported in over 50 breeds, but it is most prevalent in the Corgi, Doberman Pinscher, German Shepherd Dog, German Shorthaired Pointer, Golden Retriever, Shetland Sheepdog and Standard Poodle.