Explain Patent ductus arteriosus blood flow

Hypoplastic Left-Heart Syndrome  April 16, 2012 – 01:55 am

In this article, we want to explain the difference between the Hypoplastic Left-Heart Syndrome and the Hypoplastic Right-Heart Disease (Pulmonary Atresia).

Hypoplastic Left-Heart Syndrome

Hypoplastic Right-Heart Syndrome

The Hypoplastic Right-Heart Syndrome consists of a complete obstruction of the right ventricle outflow tract due to a hypoplastic (narrowed) pulmonary artery. When the ventricular septum is intact the patent ductus arteriosus and/or bronchial collateral arteries provide the only source of pulmonary blood flow. There are two types of defects in the Hypoplastic Right-Heart Syndrome: one, consisting of a small right ventricle with a thick wall and a small but working tricuspid valve, which is the most common defect; another, consisting of a normal right ventricle with a complete but malfunctioning tricuspid valve.

Hypoplastic Left-Heart Syndrome

The hypoplastic left heart syndrome is described as an underdeveloped left side of the heart where blood is oxygenated and returns to the rest of the body. It is considered to be one of the top three heart abnormalities that affect newborn babies and has been associated with certain chromosal duplications, translocations and deletions. Though they may appear normal at birth, but once the ductus arteriosus closes, the blood is unable to flow through the rest of the body because of the block or defect. Structures affected are the mitral valves, the left ventricle, the aortic valve and the aorta.

Source: Pulmonary Atresia

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Second part of definition:
"Complicated Term usually begins with subordinating conjunctions." Since when did explaining One complicated term involve throwing in more complicated terms. I'll tell you, teachers should teach students, Not write sentences that they already understand. Assume that the kids Don't know the terminology, don't you think that's a better way to teach us? Maybe...nd organizational skills... This might explain lots about my problem here. But that aside, I Try Hard. I do try hard! All I ask is they teach us well - Not write crap from the text book onto the chalk board, while not responding to our questions about the content, they really look baffled when we ask them questions. Like they think we're stupid - NO! we are very perceptive about what's going on.

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