Body Fluid Compartments Quiz
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Questions and Answers

Why is the total body water (TBW) in females less than that in males?

  • Females have a higher concentration of electrolytes which reduce overall water content
  • Due to the greater proportion of fat in the female body, and fat tissue has a lower water content (correct)
  • Because females have higher metabolic rates leading to lower water retention
  • Due to the higher density of muscle tissue in males which retains more water
  • What is the highest water concentration among the listed tissues?

  • Muscle tissue
  • Gray matter of the brain (correct)
  • Dentin of teeth
  • Adipose tissue
  • What is the water content of lean body tissue (fat-free tissues) on average?

  • $80-85$ ml/100-gram tissue
  • $50-55$ ml/100-gram tissue
  • $60-65$ ml/100-gram tissue
  • $71-72$ ml/100-gram tissue (correct)
  • Where is the lowest water concentration found according to the text?

    <p>Dentin of teeth</p> Signup and view all the answers

    What factor contributes to the difference in total body water (TBW) between males and females?

    <p>Proportion of body fat</p> Signup and view all the answers

    Study Notes

    Body Fluid Compartments Lecture Summary

    • The average adult male's body is composed of 60% water, while an adult female's body is composed of 50% water.
    • Total Body Water (TBW) in an adult male is approximately 42 liters, in an adult female it is about 35 liters, and in an infant it is around 15 liters.
    • The concentration of water varies across different tissues, with the brain having the highest concentration at around 85% and adipose tissue having the lowest at around 20%.
    • Female bodies have less TBW than male bodies due to a greater proportion of fat, which has a lower water content.
    • The water content of lean body tissue is almost constant at around 71-72 ml/100 grams.
    • The distribution of body water is affected by factors such as sex, age, and amount of body fat.
    • Adult males have 18% of their body weight as proteins, 15% as fats, and 7% as minerals, making a total of 40% for these components.
    • Learning objectives of the lecture include stating the percentage of total body water relative to body weight, discussing the distribution of body water, listing body electrolytes, and outlining the constituents of extracellular and intracellular fluids.
    • The lecturer is Prof. Dr. Faten Mahmoud A. Diab, a Professor of Medical Physiology from Egypt.
    • The lecture is part of the College of Dentistry curriculum and is accessible on www.gmu.ac.ae.
    • The lecture aims to provide a comprehensive understanding of body fluid compartments, electrolytes, and water distribution in the body.
    • The content covers key topics such as body composition, total body water, and the varying water content across different tissues.

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    Description

    Test your knowledge of body fluid compartments with this quiz. Learn about the distribution of body water, body electrolytes, and the constituents of extracellular and intracellular fluids. Perfect for students of medical physiology and related fields.

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