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Biology: The Dynamic Science (Mind...

4th Edition
Peter J. Russell + 2 others
ISBN: 9781305389892

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BuyFindarrow_forward

Biology: The Dynamic Science (Mind...

4th Edition
Peter J. Russell + 2 others
ISBN: 9781305389892
Textbook Problem

The posterior pituitary secretes:

hormones that control the hypothalamus.

IGF, which simulates cell division and protein synthesis.

ADH, which increases water absorption in the kidneys.

oxytocin, which controls egg and sperm development.

prolactin, which stimulates milk synthesis.

Summary Introduction

Introduction:

The pituitary gland is also known as the hypophysis and is present in the vertebrates. It is one of the endocrine gland present at the base of the brain. The three lobes of the pituitary gland control different physiological processes. The pituitary gland secretes hormones, which regulate the blood pressure, growth, pregnancy, childbirth, and functions of other endocrine glands.

Explanation

Justification for the correct answer:

Option (c) is ADH, which increases water absorption in the kidneys. This option is correct as the posterior pituitary contains the nerve endings and axons of the neurosecretory neurons that initiate in the hypothalamus. The posterior pituitary gland secretes ADH, which is a peptide hormone and acts on kidneys by increasing the absorption of water. Hence, option (c) is correct.

Justification for the incorrect answers:

Option (a) is hormones, that control the hypothalamus. This is false as the hormones secreted by posterior pituitary do not regulate the synthesis of hormones in the hypothalamus. So, it is an incorrect option...

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