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  4. Which one of the following is the hormone of adrenal medulla?

Q. Which one of the following is the hormone of adrenal medulla?

 2238  207 J & K CETJ & K CET 2007Chemical Coordination and Integration Report Error

Solution:

The adrenal medulla secretes two hormones norepinephrine and epinephrine. Epinephrine (adrenaline) is secreted at the time of emergency. Hence, it is also called emergency hormone. Epinephrine has a greater effect on cardiac activity than norepinephrine. It causes only weak constriction that results from norepinephrine. Epinephrine probably has several times as great a metabolic effect as norepinephrine.