tailieunhanh - HUMAN PHYSIOLOGY

A response is to amplify the change in the variable. This has a destabilizing effect, so does not result in homeostasis. Positive feedback is less common in naturally occurring systems than negative feedback, but it has its applications. For example, in nerves, a threshold electric potential triggers the generation of a much larger action potential. Blood clotting and events in childbirth are other types of positive feedback. | Human Physiology by Wikibooks contributors From Wikibooks the open-content textbooks collection Copyright 2006-2007 Wikibooks contributors. This book is published by Wikibooks contributors. Permission is granted to copy distribute and or modify this document under the terms of the GNU Free Documentation License Version or any later version published by the Free Software Foundation with no Invariant Sections no Front-Cover Texts and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License . Image licenses are listed in the section entitled Image Credits. Main authors Provophys C Whiteknight C RiRi82 C Jcran69 C Scout21972 C Jtervortn C DorothyD C VWilkes C Jacquel C Danyellmarie C Keith davis C Mperkins C Never2late C Shellybird2 C BriannaLenford C Jen A C Pwoodson C Nataliehaveron C Melissasmith C Brentwaldrop C Cover Der Mensch als Industriepalast Man as Industrial Palace by Fritz Kahn. The current version of this Wikibook may be found at http wiki Human_Physiology Contents 01. 02. Cell 03. The Integumentary 04. The Nervous 05. 06. The Muscular 07. Blood 08. The Cardiovascular 09. The Immune 10. The Urinary 11. The Respiratory 12. The Gastrointestinal 13. 14. The Endocrine 15. The Male Reproductive 16. The Female Reproductive 17. Pregnancy and Birth. 326 18. Genetics and 19. Development Birth Through A. Answers to Review About the History Document Authors Image GNU Free Documentation Introduction Human physiology is the study of the functioning of the normal body and is responsible for describing how various systems of the human body work. Explanations often begin at a macroscopic level