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There are two similar glands P which are located on the top of two similar organs Q in the human body. The glands P are often called glands of emergency and they secrete a hormone R into the blood stream. The hormone R is secreted in large amounts when a person is frightened. It brings about temporary changes in the body which allow a lot of substance S from the liver to go into blood so as to provide a lot of energy in a very short time. This helps the person concerned to fight back or run away from the frightening situation. What are P, Q, R and S?
(i) In above question, the gland P is adrenal glands.
(ii) The organ Q is kidneys.
(iii) The hormone R is adrenaline hormone
(iv) The substance S is glucose.
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