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Q. Describe U - Waves?
The U-wave is usually upright if the T is also upright and is highest at low rates. When the heart rate increases to more than 90, the U-wave is rarely visible because it merges with the end of the T-wave and the ascending limb of the P-wave. Most of the workers believe that it represents after potentials of the T-wave. The U-wave is accentuated by a larger diastolic volume, hypokalemia and increased digitalis or calcium. Occasionally in patients with very low potassium, the U-wave can become so tall that it is mistaken for a tall T-wave. Patients with inverted U-waves may have an overload of central volume and the tall U-waves may represent a distended papillary muscle. In patients with CAD incidence of inverted or diphasic U-waves is about 30 per cent at rest and 62 per cent after exercise. If one makes an analysis of inverted U-waves, LVH is the most common cause; angina is responsible for about 20 per cent.
Gastro Epiploic artery GEA is seldom used now. Patency has been reported as 94 per cent at one year, 88 per cent at five years and 83 per cell1 at ten years. Inferior Epiga
Proto-oncogenes Proto-oncogenes are common genes present. In all organisms and emerge to be highly conserved in the course of evolution. They have been isolated in species ra
Define about the Absorption of Iron? Before it can be absorbed, iron whether it is in the form of haem or non-haem must be released from the food matrices where it is bond with
Describe Lifetime Risk Estimation ? Traditional statistical and epidemiological methods of estimating long-term risks do not accurately reflect population burden of disease. Th
The second maturation division of the mammalian ovum occurs: 1. Shortly after ovulation before the ovum makes entry into the Fallopian tube 2. Until after the ovum has been p
OPI A T E NARCOTICS - They suppress brain activity and relieve pain popularly known as pain killers. They are sedative and astringent in nature. An astringent cause
Determine the Physiological Effects phytoestrogens? Little is known about the biologic and physiologic effect of phytoestrogens in humans. Animal studies suggest the following
FOOD Food consists of H O, minerals, vitamins carbohydrate, lipid & protein. A person needs 1600 cal. per day. This is BMR (Basal metabolic rate). Needed 2500 cal. per
Q. Define Premotor Cortex Located in the frontal lobes? Premotor Cortex - Involved in control of more complex, learned motor skills like writing, driving, etc. Broca's area or
TYPES OF PARTHENOGENESIS - 1 . NATURAL PARTHENOGENESIS - In many animals natural parthenogenesis is common process & is a method of reproduction. It is of two typ
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