Puberty may appear due to

Stimulation of adrenal cortex

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Stimulation of adrenal medulla

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Secretions from pituitary gland

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None of the above

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Solution

The correct option is C Secretions from pituitary gland
Puberty begins with a surge in hormone production, which in turn causes a number of physical changes. It is the stage in life in which a child develops secondary sex characteristics as his or her hormonal balance shifts strongly towards an adult state. This is triggered by the pituitary gland which secretes a surge of hormonal agents into the blood stream, initiating a chain reaction. The male and female gonads are subsequently activated, which puts them into a state of rapid growth and development. The testes release testosterone and the ovaries release estrogen. The production of these hormones increases gradually until sexual maturation is met.

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Choose the odd one out from each series

(a) The glands - thyroid, adrenal, pituitary, prostate...........................

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(d) The hormonal sources - adrenal cortex, adrenal medulla, cortisone, pituitary...............................

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Question 28
Dramatic changes of body features associated with puberty are mainly due to the secretion of

(a) estrogen from testes and testosterone from the ovary
(b) estrogen from adrenal gland and testosterone from pituitary gland
(c) testosterone from testes and estrogen from the ovary
(d) testosterone from the thyroid gland and estrogen from pituitary gland

Q. Identify the missing links.

\begin{matrix} Hormone & Gland & Function P & Pancreas & Decreases blood sugar level. Adrenaline & Q & Controls behaviour during emergency situations. Growth Hormone & R & S \end{matrix}

Q. The adrenal medulla is composed of modified sympathetic ganglion cells, which is nervous in nature and secretes hormone upon stimulation. Which of these hormones are secreted?

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