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Define age related changes in Respiratory system
During ageing, alveoli (present in the lungs) become flatter and shallower, alveolar ducts enlarge, walls become thinner, contains less capillaries, respiratory surface area decreases, elastic recoil response is lost, pulmonary diffusing capacity gets reduced. The respiratory response to hypoxia and hypercapnia is sluggish in the elderly. There is an overall impairment in ventilation, diffusion, regulation etc. that leads to slowing down of the respiratory responses.
Explain Brain or Detector - Mechanism of Colour Perception The fibre identification of colour takes place in the brain. If any of these four pre-requisites are not present, the
Explain the Composition of Bile Bile is a complex fluid. It is yellowish green in colour and bitter in taste. It consists of: Water Mineral salts (chloride, potassium
which is the probable principal source of nitrates and phosphate a. the water cycle b. nitrogen fixation c. bacterial decay d. change in environmental temperature e. changes in lig
Consider the following differential equation: t 2 x''+ 5 t x' + (3 + 2 t) x = 0 a. Show the steps needed to derive the recursive formula for the coefficients of the pow
Disposal of Chemical Wastes : We shall deal with some commonly occurring chemical wastes. If you need to know more details covering the disposal of a wide range of chemicals, you
Fingerprinting the Stars: Astronomers use various methods to measure the distances to stars. For determining the distances to nearby stars, the method of stellar parallax is
Comment on their location in the sky (constellation, relative altitude over the horizon, etc) and track their movement above the course of the next couple of weeks, every day comme
SEA WATER HAS TO BE FILTERED TO REMOVE MOST SOLID IMPURITIES IN IT BEFORE IT UNDERGOES MEMBRANE DESALINATION .SUGGEST ONE REASON.
How Complement System Helps To Handle Microbial Invasion 1) Some components of a complement system coat microorganisms. These organisms with such a coat can be easily phagocyt
Determine about the endodynamorphic soils There are instances where the effect of climate is subdued or masked by the parent material. Soils formed under such conditions where
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