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Questions and Answers
What is the primary function of blood related to protection?
What is the primary function of blood related to protection?
- Balancing fluid levels
- Transporting nutrients
- Regulating body temperature
- Defending against pathogens (correct)
What percentage of blood is made up of plasma?
What percentage of blood is made up of plasma?
- 45%
- 55% (correct)
- 60%
- 50%
Which of the following is NOT a function of blood?
Which of the following is NOT a function of blood?
- Distribution of hormones
- Regulation of pH
- Exchange of oxygen and carbon dioxide
- Storage of energy (correct)
How does blood assist in regulating body temperature?
How does blood assist in regulating body temperature?
Which component makes up the majority of plasma?
Which component makes up the majority of plasma?
Which of the following describes a key regulatory function of blood?
Which of the following describes a key regulatory function of blood?
In terms of blood components, which statement accurately reflects the primary characteristics of plasma?
In terms of blood components, which statement accurately reflects the primary characteristics of plasma?
Which characteristic of blood contributes to its ability to protect the body?
Which characteristic of blood contributes to its ability to protect the body?
How does blood contribute to the distribution function in the body?
How does blood contribute to the distribution function in the body?
What is the significance of blood volume in the circulatory system?
What is the significance of blood volume in the circulatory system?
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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
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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