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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.
how do birds respire while flying??
Organic Molecules Some organic molecules in life are Carbohydrates and Lipids à C, H and O Proteins à C, H, O, N & sometimes S Nucleic acids à C, H, O, N & P
Define Feeding and Nutritional Management for patient of alzheimer's disease? Keeping the clinical manifestations of Alzheimer's disease in mind, treatment involves personaliz
How do pathological conditions affect homeostasis of your body?
difference between the respiration occurs in lower and higher organisms
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Energy Loss - Energy Flow Let us now take the second point that is the loss of some energy at each trophic level. You might recall that the second law of thermodynamics states
Patients with aborted sudden death, hemodynamically unstable ventricular arrhythmias, and unexplained cardiogenic syncope are at high risk for fatal ventricular arrhythmias. If the
Biodiversity is multiple resource based offering us a range of products, materials and services. Our survival and well being of man-kind is directly dependent on biodiversity. Biod
A biologist examines a series of cells and counts 140 cells in interphase, 10 cells in metaphase, 4 cells in anaphase and 7 cells in telophase. if complete cell cycle requires 24 h
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