Cardio TEST 1

What is the primary function of the heart?

• To pump blood through blood vessels to all body cells

• To filter blood

• To produce blood cells

• To store oxygen

What is the protective sac that covers the heart called?

• Myocardium

• Pericardium

• Endocardium

• Epicardium

How many layers does the pericardium have?

• One

• Two

• Three

• Four

What is the role of veins in the circulatory system?

• Carry blood away from the heart

• Carry blood to the heart

• Cause the heart to contract

• Control blood flow direction

What is the role of coronary arteries in the heart?

• To pump blood to the lungs

• To create circulation of blood within the heart muscle

• To filter blood

• To store oxygen

Which organ requires the most oxygen?

• Lungs

• Brain

• Heart

• Liver

What is the function of pulmonary arteries in the circulatory system?

• Carry oxygen-rich blood to the heart

• Carry blood low in oxygen to the lungs

• Carry nutrients to the body

• Carry carbon dioxide to the heart

Which part of the heart receives oxygen-poor blood from the body?

• Left atrium

• Right atrium

• Left ventricle

• Right ventricle

Which valve is located between the right atrium and right ventricle?

• Bicuspid valve

• Aortic valve

• Tricuspid valve

• Pulmonary valve

Which chamber of the heart pumps oxygen-rich blood into the aorta?

• Right atrium

• Left atrium

• Right ventricle

• Left ventricle