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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.
Types of polyembryony
Q. Illustrate the maturation of honey? Honey is the oldest sweet food known to man. Although honey is a natural sweetener, it is considered a refined sugar because 96% of dr
What is Calvin Cycle? The dark reactions of photosynthesis are also known as the Calvin cycle. This process synthesizes glucose molecules using carbon dioxide from the atmosphe
Define Neurological disorders of non- nutritional etiology? Some of the common disorders are Alzheimer's disease, Parkinson's disease, epilepsy, and spinal and neuro trauma.
Stage 1 sleep: As an individual becomes drowsy, and enters stage 1, alpha wave decreases and theta waves appear. Theta waves with a frequency of about 6 to 8 cycles per second are
Define Conjunctival Xerosis - Micronutrient Deficiencies? Conjunctiva in nonnal children is bright white, smooth and glistening. Conjunctival xerosis is characterized by drynes
1. Awareness - First people become aware of a problem. 2. Acquire Knowledge and skills - Next, they gather knowledge and learn new skills. 3. Motivation - At the next stag
Design a controlled experiment to test the hypothesis that acid precipitate inhibits the growth of elodea, a common freshwater plant.
Explain Atazanavir Atazanavir (ATV, Reyataz) - Atazanavir (Medical Letter 2003; 45:89) is the first single-agent protease inhibitor with once-daily dosing. In clinical trials
Difference between Vegetative and Generative Cell The cytoplasm of the vegetative cell and the generative cell is distinctly different. The generative cell is transparent and
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