Cardiovascular System Quiz

What is the primary function of the circulatory system?

• Transporting oxygen and nutrients

• Producing hormones

• Filtering waste products

• Regulating body temperature

Which chamber of the heart receives oxygen-depleted blood?

• Right ventricle

• Left atrium

• Left ventricle

• Right atrium

What is the role of the aorta in the cardiovascular system?

• Regulates blood pressure

• Pumps blood to the lungs

• Carries oxygen-rich blood to the body

• Receives deoxygenated blood

What is systolic blood pressure?

• Pressure in the veins

• Pressure during heart contraction

• Average pressure in the arteries

• Pressure when the heart is at rest

Which factor does NOT influence blood pressure?

• Cardiac output

• Blood viscosity

• Body temperature

• Age of the individual

What is the function of baroreceptors?

• Stimulate hormone release

• Control heart rate

• Detect pressure changes in blood vessels

• Regulate blood oxygen levels

Which hormone helps regulate blood pressure by affecting blood volume?

• Adrenaline

• Norepinephrine

• Antidiuretic hormone (ADH)

• Thyroxine

What is the primary role of the pulmonary circulation?

• Remove waste from tissues

• Exchange gases in the lungs

• Regulate blood pressure

• Transport oxygen to the body

What happens to blood pressure when the heart rate increases?

• It decreases

• It increases

• It remains the same

• It fluctuates

Which of the following factors can increase heart rate?

• Hypoxia

• Low blood pressure

• Increased blood viscosity

• Dehydration