Functions and Composition of Blood
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Questions and Answers

What is the primary function of blood related to temperature?

  • Protection against infections
  • Distribution of nutrients
  • Regulation of body temperature (correct)
  • Transport of oxygen
  • Blood is composed of 45% plasma and 55% cellular components.

    False

    What are the main components of blood?

    Plasma, red blood cells, white blood cells, and platelets.

    Blood is primarily composed of _____, which makes up about 55% of its volume.

    <p>plasma</p> Signup and view all the answers

    Match the blood component with its primary role:

    <p>Plasma = Transport nutrients and waste Red Blood Cells = Transport oxygen White Blood Cells = Fight infections Platelets = Blood clotting</p> Signup and view all the answers

    Study Notes

    Functions of Blood

    • Distribution of nutrients, oxygen, hormones, and waste products throughout the body
    • Regulation of body temperature, pH levels, and fluid balance
    • Protection against blood loss through clotting and infection via immune response

    Blood Volume and Composition

    • Total blood volume varies by individual; generally around 5-6 liters for an adult male and 4-5 liters for an adult female
    • Normal blood pH ranges from 7.35 to 7.45, essential for enzymatic functions
    • Average blood temperature is approximately 38°C (100.4°F), slightly warmer than normal body temperature

    Blood Components

    • Plasma constitutes about 55% of total blood volume
    • Major constituents of plasma include:
      • Water (about 90% of plasma volume)
      • Plasma proteins such as albumin, globulins, and fibrinogen, which play roles in osmotic balance, immune function, and blood clotting
      • Various dissolved substances, including electrolytes, nutrients, gases, and wastes

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    Description

    Explore the essential roles of blood in the body, including its functions in distribution, regulation, and protection. Discover the components of blood and their contributions to overall health. This quiz covers the basics of blood volume, composition, and its critical impact on bodily functions.

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