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Define age related changes in Cardiovascular system
There is a decrease in elasticity of the aorta and other large arteries as age increases. Thickness of blood vessels increases leading to a rise in blood pressure. The myocardium (muscle wall of the heart) shows atrophy. There are structural changes in the valves. Number of pacemaker cells gets reduced, thereby a reduction in heart rate is observed.
Role of communication in cultural understanding: In the area of cultural promotion, communication media can be used to meet the two fundamental needs. Firstly, the media like
Ultraviolet Radiations : The ultraviolet (UV) light has higher energy than visible light. Hydrogen lamps, deuterium lamps and other sources of ultra-violet are used for a variety
Explain the Insulin Insulin is a hormone synthesized from the precursor called preproinsulin. Preproinsulin has four peptides. Insulin circulates in the blood in a free state.
Q.What is soil erosion? The blowing away or washing away of land surface by wind or water is known as soil erosion.
Diagrammatically explain about the complementary nature of atomic absorption spectrophotometer and atomic emission spectrometry.n..
Explain the Filiform papillae These are long and slender and are the smallest of the three types of papillae. They are found to be most numerous on the edges and anterior two t
Lowing soap bubbles with hydrogen Mix up a strong soap solution that will make good soap bubbles. Place a small funnel tube or a clay pipe on the delivery tube. When you have a
Explain the Orthopnoea and Tachypnoea Orthopnoea: Dyspnoea occurs even at rest in severe cardiac congestive failure. This condition is called orthopnoea. Tachypnoea: It is a
application of remote sensing in land slides and flood control
Greenhouse effect: Scientists have reason to believe that air pollution. both due to carbon particles or soot and carbon dioxide would affect weather. A rise in surface temper
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