Quiz on the Circulatory System

What is the vein that brings oxygenated blood to the heart from the lungs?

• Coronary Vein

• Pulmonary vein

• Superior Vena Cava

• Renal vein

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

• Right ventricle

• Left auricle

• Left ventricle

• Right auricle

What is the main artery that carries oxygenated blood from the heart to the body?

• Pulmonary artery

• Aorta

• Coronary artery

• Superior vena cava

Which structure is responsible for starting electrical impulses in the heart?

• SA node

• Aorta

• Pulmonary vein

• Tricuspid valve

What type of blood do pulmonary arteries carry?

• Oxygenated blood

• Deoxygenated blood

• Carbon dioxide-rich blood

• Nutrient-rich blood

What is the fluid contained within lymphatic vessels called?

• Lymph

• Serum

• Blood

• Plasma

What is the role of the pericardial fluid?

• To transport oxygen

• To protect the heart from shocks

• To carry nutrients

• To remove waste

Which blood group is known as the universal donor?

• O

• AB

• A

• B

What is the condition called when the heart suddenly stops pumping blood?

• Palpitations

• Hypertension

• Cardiac arrest

• Heart attack

What is the primary function of lymphocytes in the lymph?

• Remove waste

• Transport oxygen

• Carry nutrients

• Defend the body