Understanding Heart and Blood Vessels

What is the primary function of the heart

• To store blood

• To pump blood throughout the body

• To filter blood

• To oxygenate blood

Which of the following blood vessels carries almost always oxygenated blood away from the heart?

• Veins

• Arteries

• Capillaries

• Venules

What is the term for the heart's response to an increase in physical activity, resulting in a higher heart rate before the activity begins?

• Reflexive heart rate

• Anticipatory increase in heart rate

• Reactive heart rate

• Pre-emptive heart rate

Which chamber of the heart receives deoxygenated blood immediately from the body?

• Left atrium

• Right atrium

• Left ventricle

• Right ventricle

What is the effect of increased cardiac output on blood pressure?

• Decreases blood pressure

• Increases blood pressure

• No effect on blood pressure

• Stabilises blood pressure

Which of the following is NOT a function of the cardiovascular system?

• Transporting nutrients

• Regulating body temperature

• Producing hormones

• Removing waste products

What is the primary role of capillaries in the alveoli

• To carry blood to the heart

• To allow gaseous exchange

• To store blood

• To regulate blood pressure

Which of the following describes the redirection of blood flow during exercise?

• Blood is diverted to the digestive system

• Blood is redirected to the muscles

• Blood flow remains constant

• Blood is redirected to the skin

What is the main function of the left ventricle?

• To receive oxygenated blood from the lungs

• To pump oxygenated blood to the body

• To receive deoxygenated blood from the body

• To pump deoxygenated blood to the lungs

What is the main function of the right ventricle?

• To pump deoxygenated blood to the lungs

• To pump oxygenated blood to the body

• To receive deoxygenated blood from the body

• To pump deoxygenated blood to the lungs