Aortic stenosis, Biology

Aortic Stenosis 

Aortic stenosis is due to an obstructive lesion that interferes with the blood flow out of the left ventricle. Depending upon the site of obstruction to the outflow of blood, the aortic stenosis may be divided into two categories. 


Due to resistance to blood outflow from the left ventricle to the aorta, left ventricular hypertrophy occurs. There  is back flow of blood to the left atrium, causing increased pressure  in  left atrium which in  turn results  in  the increased pressure  in the pulmonary veins and pulmonary vascular congestion.  In case of severe obstruction the pulse pressure in  the aorta is narrowed.  

Posted Date: 10/26/2012 8:49:08 AM | Location : United States

Related Discussions:- Aortic stenosis, Assignment Help, Ask Question on Aortic stenosis, Get Answer, Expert's Help, Aortic stenosis Discussions

Write discussion on Aortic stenosis
Your posts are moderated
Related Questions
In the lack of tryptophan shown in the figure, a trp repressor protein encoded by a split operon, trpR that is synthesized and forms a dimer.  Furthermore, this is inactive and so

Proteins necessity They are called as body builders. The proteins are used in various metabolic pathways and body building. They help in repairing the tissues of the b

Reproduction Living things do not arise spontaneously. They arise only from pre-existing living things This is one of the fundamental tenets of biology. The ability of an orga

composition formation and circulation of lymph

Which type of defense cell do bacteria attract and cause to multiply during the inflammation process? What is the name given to the waste material produced by the inflammation trig

Anti Lipid Drugs :  The current thinking is that it is very important to keep lipid levels low. It helps in preventing atherosclerotic changes in venous grafts and the long-term p

Why is it important to study biology? By studying biology, you can create informed decisions on issues that impact you and society, like environmental issues, health, and tech

Field Capacity (FC) It is the capacity of a field to hold the amount of water against gravitational forces. It is expressed as the percentage of the dry weight of the soil. Fi

Q. What about the fluid and other nutrient intake during constipation? The fluid intake should be at least 2 litres daily. This includes fluid as foods and beverage besides wa

Invertebrates - Osmotic and Ionic Regulation Regulation of water and ions in invertebrates is done by neuroendocrine mechanism. It operates at the level of Malpighian tubules