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These circular orifices are located at the upper ends of the outflow parts of the left and right ventricles respectively. The pulmonary orifice which is 3 cms, is 0.5 cm larger than the aortic orifice. The aortic orifice is placed in front and to the right of the mitral orifice. The pulmonary orifice is placed above and to the left of the tricuspid orifice and the aortic orifice intervening between them. The pulmonary orifice is guarded by the pulmonary valve and the aortic orifice by the aortic valve. Each valve consists of three semilunar cusps. Each cusp is triangular. It has a convex edge which is attached to the part of the margin of the orifice. It has two free margins that meet at the apex of the cusp. Each cusp consists of a double fold of endocardium with some fibrous tissue in it. The region of the apex is thickened to form a nodule while crescentric parts near the free edges are called lunules.
Q. Nutritional management of steatorrhoea? The Nutritional management of steatorrhoea should focus on the following: • Plenty of rest and relaxation and avoid stress •
Is herbivorism a form of predatism? Herbivorism is a type of predatism in which first order consumers feed from producers (plants or algae). For instance, birds and fruits, hum
Explain about the Shade Drying? Shade drying is carried out for products which can lose their colour and/or turn brown if put in direct sunlight. Products that have naturally v
How does the heart impel the blood? The heart is a muscular organ that having chambers (right atrium and right ventricle and left atrium and right ventricle) by which blood pas
Detritus Food Chains Detritus food chains begin with dead organic matter which is an important source of energy. A large amount of organic matter is contributed by the death o
Photoperiodism Activity like breeding and migration in animals; flowering, seed germination in plants are regulated by the length of daily period of light and darkness. This be
Sinus Perforations The maxillary antrum can sometimes be inadvertently penetrated. Through careful pre-operative planning using radiographs, including axial scans, this compli
characterstic of phylum arthropoda
How does photoperiodism affect the flowering of some plants? The Flowering is an easy and typical to observe example of photoperiodism. Most of flowering plants flower only dur
What (a) internal, (b) external events contribute to gain of heat in the body? a) Respiration in the tissues, particularly in the brain and active muscles, is the major in
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