NEET 2013 Biology question

Which of the following statements is correct in relation to the endocrine system ?

(1)Adenohypophysis is under direct neural regulation of the hypothalamus
(2)Organs in the body like gastrointestinal tract, heart, kidney and liver do not produce any hormones
(3)Non-nutrient chemicals produced by the body in trace amount that act as intercellular messenger are known as hormonesCorrect
(4)Releasing and inhibitory hormones are produced by the pituitary gland

Answer: (3)

Solution

Hormones are defined (NCERT) as non-nutrient chemicals which act as intercellular messengers and are produced in trace amounts - statement (3) is correct. (1) is wrong: the adenohypophysis is regulated by hypothalamic releasing/inhibiting hormones carried through the hypophyseal portal system (a vascular,

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Question ID VK-091451