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Carpentier -Edwards Valve (C-E) : This is porcine aortic valve preserved in gluteraldehyde and mounted on flexible stent made of cobalt-chromium-nickel alloy (ELGILOY). Gluteraldehyde, a chemical used for tanning of leather causes stability to valve leaflets due to cross linkage of collagen fibres and it reduces antigenicity. It has sewing ring with polytetra fluoro ethylene (PTFEGoretex), incorporating silicon rubber. Valves are available for aortic and mitral position in various sizes. Biological deterioration will occur after 7- 10 years but mechanical failure is uncommon. The rate of biological deterioration 'is faster in children.
Explain the Small Intestine? The small intestine is made up of three sections, the duodenum, the jejunum, and the ileum. Bile from the liver and pancreatic enzymes are released
Q. How do the bacteria reproduce? Bacteria reproduce by binary fission termed as scissiparity. Some bacteria however present a kind of sexual reproduction transformation, conju
Q. Echinoderm identity card. How are echinoderms characterized according to examples of representing beings, basic morphology, type of symmetry, germ layers and coelom, respiratory
Explain Cardiopulmonary Resuscitation? The heart rhythm associated with cardiac arrest can be either ventricular fibrillation/ ventricular tachycardia (VT/VF) or other rhythms
The cell cycle undergoes a sequence of changes which involve a period of growth replication of DNA, Followed by cell division. This sequence of changes is called cell cycle.
what is sensory receptor in vertebrates
What is karyotype? The name karyotype is given to the set of chromosomes of an individual, generally when visualized and identified under the microscope. The visualization usua
A (w+/ w+) red-eyed Drosophila female is crossed with a white-eyed male. Assuming the trait for eye colour is sex-linked, what are the possible phenotypes of the progeny?
CILIA AND FLAGELLA Purkinj e first observed ciliary movement. Hodge studied detail structure of sperm flagellum. Manton studied structure of cilia in plants.
Q. Define Hepatic Cholesterol Synthesis? This is a highly complex process beginning with acetyl CoA formed from fatty acid oxidation or from carbohydrate breakdown. The rate-de
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