Questions and Answers
What is the primary function of blood related to temperature?
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.
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Match the blood component with its primary role:
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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.
