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?

• Left ventricle

• Right atrium

• Right ventricle

• Left atrium

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

• Pumps blood to the lungs

• Carries oxygen-rich blood to the body

• Receives deoxygenated blood

• Regulates blood pressure

What is systolic blood pressure?

• Pressure in the veins

• Pressure during heart contraction

• Pressure when the heart is at rest

• Average pressure in the arteries

Which factor does NOT influence blood pressure?

• Cardiac output

• Blood viscosity

• Body temperature

• Peripheral resistance

What is the function of baroreceptors?

• Control heart rate

• Stimulate hormone release

• Detect pressure changes in blood vessels

• Regulate blood oxygen levels

Which hormone helps regulate blood pressure by affecting blood volume?

• Antidiuretic hormone (ADH)

• Adrenaline

• Thyroxine

• Norepinephrine

What happens during diastole?

• Heart contracts and pumps blood

• Blood pressure is at its highest

• Blood is ejected from the ventricles

• Heart relaxes and fills with blood

Which of the following is a characteristic of capillaries?

• Large lumen for blood flow

• One endothelial cell thick

• High pressure environment

• Thick walls for strength

What is the primary role of the pulmonary circulation?

• Regulate blood pressure

• Remove waste from tissues

• Exchange gases in the lungs

• Transport oxygen to the body