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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.
Systems of Human Body Many organs work in a coordinated'manner to form a system. For example in our-body the nose, the trachea and the lungs form the respiratory system. Table
Explain how you would create a standard curve to determine the amount of orange dye that had been added to a can of orange soda
Explain Procedure for Separation of Amino Acids by Paper Chromatography? Now carry out the procedure following the steps given herewith: 1. Take a circular Whatman No 1 filt
Which of the following represents two things that are identical? a.Two alleles for the same gene in a homologous chromosome pair. b.The sequences of DNA in the two sister chr
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Q. What are the cytoplasmic inclusions? Cytoplasmic inclusions are cytoplasmic molecular aggregates, such as organic polymers, pigments and crystals. They are not considered ce
Explain the Distant Osteogenesis In this an extracellular matrix establishes the implant surface contact. The osteogenic cells line the host bone surface. The blood supply to t
What are some examples of organs and tissues where mitosis is more frequent, less frequent or practically absent? Generally in vertebrates mitosis is more frequent in a tissue
Salmonellosis is the most reported zoonotic disease in European countries. Salmonellosis (Salmonella gastroenteritis) results from the ingestion of foods that contain significant n
what is the structure of hiv virus?
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