CARDIOVASCULAR SYSTEM: THE BLOOD

What are the main substances transported by blood?

• Electrolytes, vitamins, enzymes

• Antibodies, glucose, cholesterol

• Oxygen, carbon dioxide, nutrients, hormones, and waste products.

• Water, minerals, proteins

How does blood help regulate body temperature?

• Blood maintains temperature by storing heat in red blood cells.

• Blood regulates temperature by increasing heart rate only.

• Blood helps cool the body by absorbing sunlight.

• Blood regulates body temperature by adjusting blood flow to the skin and facilitating heat exchange.

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What role do white blood cells play in blood protection?

• White blood cells primarily transport oxygen throughout the body.

• White blood cells help in the digestion of food particles.

• White blood cells are responsible for clotting the blood.

• White blood cells protect the body by identifying and attacking pathogens.

What is the normal temperature of blood in Celsius?

• 39

• 38

• 37

• 36

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What percentage of body weight does blood constitute?

• 10-12%

• 7-8%

• 3-4%

• 5-6%

What are the two main components of blood?

• Plasma and formed elements

• Platelets and antibodies

• Oxygen and carbon dioxide

• Red blood cells and white blood cells

What is the primary composition of blood plasma?

• Hormones and vitamins only

• Only water and electrolytes

• Red blood cells and platelets

• Water, proteins, electrolytes, nutrients, hormones, and waste products

Name the three types of formed elements in blood.

• Red blood cells, white blood cells, platelets

• Hemoglobin, myoglobin, fibrin

• Plasma, lymph, serum

• Erythrocytes, leukocytes, thrombocytes

What is hemopoiesis?

• The process of blood clotting.

• The formation of muscle tissue.

• The synthesis of hormones.

• Hemopoiesis is the production of blood cells.

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What is the pH range of blood?

• 7.0 to 7.3

• 7.35 to 7.45

• 6.5 to 7.0

• 7.5 to 8.0

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