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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.
Principles Governing Cleavage a) The nucleus and mitotic achromatic figure tend to occupy the centre of active cytoplasmic density of the dividing cells, e.g., in isolecithal
Define Carbohydrate metabolism - Ageing? Glucose tolerance may be impaired to some extent. Usually, the fasting blood sugar is normal. The absorption of carbohydrate is not im
What are the endocrine glands involved in the menstrual cycle? What are the hormones in action? The endocrine glands that secrete hormones included in the menstrual cycle are t
What is the best microscope to get a detailed view of the parts inside of a preserved plant cell
classification sketch of protozoa
Body temperature is homeostatic ally regulated around a set point. Given your knowledge of negative feedback and homeostatic control system, predict whether narrowing or widening o
Sertoli cells are found in: 1. ovaries and secrete progesterone 2. adrenal cortex and secrete adrenaline 3. seminiferous tubules and provide nutrition to germ cells 4.
What are the three main parts into which a neuron can be divided? What are their respective functions? The three mains parts into which a neuron can be didactically separated a
Define Energy requirements for Underweight? The total calorie intake should be 500 to 1000 Kcal in excess of the daily needs in order to result a gain in weight by half to one
Define Food processing unit operations? Food processing unit operations are involved in the engineering aspects of food processing, packaging and storage. Heating, cooling, dry
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