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Classic Procedure: The approach is the same as described earlier for open mitral valvotomy. The excision starts with an anterior incision on the anterior leaflet at 12o'clock position, 2mm distal to the annulus. The incision is extended. The anterior leaflet with the chordae and the tip of the papillary muscle are removed. If the posterior leaflet is calcified, it is also excised along with chordae and tips of papillary muscles. Over zealous excision and suturing may cause venticular rupture or damage to circumflex coronary arteiy. Valve size is assessed according to the type of valve selected by the surgeon. The valve can be sutured by a continuous suture technique or interrupted pledgetted mattress sutures using 2 '0' braided polyester sutures. The pledgets are usually placed on the atrial aspect or rarely on the ventricular aspect.
Neurons - Nervous System Although neurons occur in a great variety of sizes and morphological forms, they have a basic plan of structure representing certain common characteri
What is fixism? The Fixism is the theory about the diversity of life on earth that affirms that the current existent species were identical to species of the past and came out
Q. According to the function of the transmitted neural impulse which are the types of neurons? How different are the concepts of afference and efference of the neural impulse trans
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Assume that you have 1M stock solutions of NaCl, KCl, and CaCl2. If the ion concentrations in human plasma are 120 mM Na+, 12mM K+, and 2 mM Ca+, compute the volumes of the stock s
Cell - Cell is the structural & functional unit of life. Study of the structure of the cell is called cytology. Study of structure and functions of the cell is called
Cells are classified into eukaryotic or prokaryotic. Prokaryotic cell is that with no a delimited nucleus. Eukaryotic cells are those with nucleus delimited by membrane.
Unsaturated fatty acids show different types of isomerisms. We have already learnt about the.concept of isomerism in the last unit. You would realize that fatty acids with s
The oxidation of sugar in the cell of higher organisms takes place in the ?
Q. Chronic exposure of Cadmium? An increase in the soil cadmium content due to soil pollution by industrial wastes, burning of coal, fossil fuels, sewage sludge, medical and
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