Concept explainers
To determine: The fraction of total-body water in extracellular fluid.
Introduction: A water molecule is shaped like a ‘V’ and consists of an oxygen atom and two hydrogen atoms. Oxygen is more electronegative than hydrogen; thus, the shared electrons in the O-H covalent bond are more attracted by the oxygen atom.
Explanation of Solution
Water is the essential element of the human body that accounts for 60% of the total body weight. Approximately, 1/3rd of the total water present in the human body is in the extracellular compartments.
To determine: The fraction of a person’s body weight due to extracellular body water.
Explanation of Solution
As water contributes 60% of a human body weight, the water in extracellular fluid makes up approximately 20% of the weight of human body because 1/3rd part of 60% is 20%..
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Chapter 1 Solutions
Vander's Human Physiology