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Q. Can you define P-Waves?
Changes in P-wave morphology have been well described in resting tracings and are very useful in identifying right and left sided hemodynamic alterations due to both volume and pressure load. Careful study has revealed that it is P-wave deviation i.e. altered during ischaemia. As left ventricular end diastolic pressure increases with a loss of ventricular compliance, the left atrial wall distended by increasing pressure, which apparently slows conduction through the atrium and this prolongs the depolarization wave. The low amplitude of the P-waves however, makes the measurements difficult, which probably accounts for the low sensitivity of these findings. When the other signs of ischaemia are absent, the deviation of P-wave from rest to exercise should be measured (best in lead 2). An increased duration of greater than 20 milliseconds provides a specificity of 64 per cent.
How do the products of meiosis I differ from those of meiosis II? In meiosis I, the offspring cells are haploid but every cell contains two copies of the chromosome because th
Use of micro-organisms to control insect pests, pathogens or weeds constitutes biological control, and the biological agents employed are called biocontrol agents. Micro-organis
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what is photo-respiration
PENIS - Intromittent organ. Erectile, its apex is penis glanse. Covered by prepuce (part of skin). Main function is insemination (To transfer sperms in vagina in deep).
Algae have cell wall made up of: 1. Cellulose, galactans and mannans 2. Hemicellulose, pectins and proteins 3. Pectins, cellulose and proteins 4. Cellulose, hemicellulo
Exposure assessment Estimates of dietary intakes of food additives, residues of pesticides and veterinary drugs and contaminants require information on the consumption of rele
What is commensalism? Commensalism is the ecological interaction in which one individual advantage while the other is neither benefited nor harmed. Commensalism is a harmonious
Erythrocytes or red blood cells: These are otherwise called Red Blood cells or corpuscles. These are the most numerous cells in the blood.There are about 4.5 to 5.5x 10 9
Q. Why can be the consumption of molecular oxygen indicates the metabolic rate of aerobic organisms? Molecular oxygen (O 2 ) consumption has direct relation to the cell metabol
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