Exam 1 Mod 1: Overview Cardiovascular System

Question 1

Describe the major functions of each component of the cardiovascular system (i.e., blood, heart, blood vessels)

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Answer 1

• Transport functions:
• Delivering O2 and nutrients to body cells
• Transporting metabolic wastes to lungs and kidneys for elimination
• Transporting hormones from endocrine organs to target organs
• Regulation functions:
• Maintaining body temperature by absorbing and distributing heat
• Maintaining normal pH using buffers; alkaline reserve of bicarbonate ions
• Maintaining adequate fluid volume in circulatory system
• Preventing blood loss
• Plasma proteins and platelets in blood initiate clot formation
• Preventing infection
• Agents of immunity are carried in blood (antibodies, complement proteins, white blood cells)

Question 2

Describe the major functions of blood

Answer 2

• Transport functions:
• Delivering O2 and nutrients to body cells
• Transporting metabolic wastes to lungs and kidneys for elimination
• Transporting hormones from endocrine organs to target organs
• Regulation functions:
• Maintaining body temperature by absorbing and distributing heat
• Maintaining normal pH using buffers; alkaline reserve of bicarbonate ions
• Maintaining adequate fluid volume in circulatory system
• Preventing blood loss
• Plasma proteins and platelets in blood initiate clot formation
• Preventing infection
• Agents of immunity are carried in blood (antibodies, complement proteins, white blood cells)

Question 3

What are the general major functions of blood

Answer 3

• Transport functions
• Regulation functions
• Preventing blood loss
• Preventing infection

Question 4

Explain why the Cardiovascular System is described as “two circuits in series”