Essentials of Human Anatomy & Physiology (12th Edition)

Published by Pearson
ISBN 10: 1292216239
ISBN 13: 978-1-29221-623-2

Chapter 7 - The Nervous System - Review Questions - Page 303: 36

Answer

Senility is characterized by forgetfulness, irritability, difficulty in concentrating and thinking clearly, and confusion. Permanent senility is caused by reduction of the oxygen supply to the brain. Whereas reversible senility is caused by depression, low blood pressure, poor nutrition, certain drug usage, etc..

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