List Diseases – A
Aplasia of the hand is a complete absence of the rays of the hand with only the bones of the wrist present on the affected side. With such developmental defects, only prosthetics are possible.
The loss of the ability to produce a voice is called "aphonia." A person speaks only in a whisper, without the hoarseness or wheezing characteristic of dysphonic disorders.
Everyone probably knows what a coma or comatose state is. But not many are familiar with the term "apallic syndrome". Apallic syndrome is a type of coma - a vegetative state in which there is a profound disorder of the cerebral cortex function.
As a result of such changes, the aortic wall becomes less elastic, and this can negatively affect the hemodynamic function of the aorta, which ensures the continuity of the flow of oxygenated blood through other arterial vessels.
Aortic stenosis is a narrowing of the aortic valve that limits blood flow from the left ventricle into the ascending aorta during systole. Causes include congenital bicuspid aortic valve, idiopathic degenerative sclerosis with calcification, and rheumatic fever.
Aortic dissection is the penetration of blood through cracks in the inner lining of the aorta with dissection of the inner and middle linings and the creation of a false lumen.