Water Balance in the Body: Healthy Intake & Output


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What is water balance?

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1. What is the amount of change needed in water balance to activate the thirst center?

2. Which organ(s) regulates fluid output?

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About This Quiz & Worksheet

It is very important to keep water balanced in the body because too much can be toxic and too little can inhibit cellular functions. This quiz/worksheet combo will help you test your understanding of the anatomy and physiology that keep water balanced.

Quiz & Worksheet Goals

In these assessments you'll be tested on:

  • Physiologic mechanism of thirst
  • Anatomy relevant to water balance
  • Definitions of water balance and osmotic concentration
  • Effect of alcohol on water balance

Skills Practiced

This quiz and worksheet allow students to test the following skills:

  • Reading comprehension - verify that you apprehend the most relevant information from the related Water Balance in the Body: Healthy Intake & Output lesson
  • Making connections - demonstrate that you can predict effects of various types of fluids on water balance
  • Interpreting information - ensure that you can read and interpret information about the anatomy and physiology of water balance
  • Defining key concepts - show that you understand the meaning of terms related to the chemistry of water and electrolyte balance

Additional Learning

To learn more about water balance, review the accompanying lesson on Water Balance in the Body: Healthy Intake & Output. This lesson covers the following objectives:

  • Relate water balance, water homeostasis and osmotic concentration to one another
  • Explain how water is gained and how water is lost by the body
  • State the Recommended Daily Intake (RDI) of water in the U.S.
  • Identify types of fluids that are good sources of water and those that are dehydrating
  • Recognize consequences of too much or too little water
  • Explain the role of the excretory system in water balance