Explanation The pineal gland is located deep in the brain, below the third ventricle. This gland is sensitive to the light and secretes a hormone called as melatonin. The pineal gland is extremely sensitive to the light despite being located in the brain. The secretion and release of melatonin depend on the availability of light. The secretion of melatonin is influenced by the presence or absence of visual clues and darkness...

Human Biology: Concepts and Current Issues

7th Edition

ISBN: 9780321821652

Author: Michael D. Johnson

Publisher: Benjamin Cummings

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Question

Chapter 13, Problem 10CR

Summary Introduction

To review:

The role of the pineal gland in the circadian cycle.

Introduction:

Circadian cycle is a process by which body gets accustomed to night and day. The circadian cycle synchronizes rhythm of all the bodily functions to daily light and dark cycle or day and night. This function, if is not proper, the body’s functions may be hindered. Pineal gland plays an important role in this cycle.

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Chapter 13, Problem 9CR

Chapter 13, Problem 1TY

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Chapter 13 Solutions

Human Biology: Concepts and Current Issues

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Solution Summary: The author explains the role of the pineal gland in the circadian cycle.

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