The Cardiovascular System

What structures make up the cardiovascular system?

• Heart, lungs, & veins
• Heart, veins, arteries, & capillaries
• Heart, skin, bones, & brain
• Heart, lung, arteries, & capillaries

Which of the following delivers oxygen to cells?

• Red Blood cells
• White blood cells
• Platelets
• Plasma

Which of the following are the blood vessels that have a wall that is 1 cell thick?

• Veins
• Arteries
• Cappillaries

Which of the following are the blood vessels that have the thickest walls?

• Veins
• Arteries
• Cappillaries

What is the function of a valve?

• Helps blood to clot
• Keeps blood flowing in all directions
• Keeps blood flowing in one direction
• Stops blood from flowing

Which part of the heart pumps deoxygenated (oxygen-poor) blood?

• Left side
• Right side
• Top side
• Bottom side

Which is the muscular wall that separates the heart into right and left sides?

• valves
• ventricles
• atria
• septum

Oxygen-poor blood arrives to the heart from the the body via the _____.

• aorta
• pulmonary arteries
• superior and inferior vena cava
• pulmonary veins

The average blood pressure is 

• 120/80
• 80/120
• 115/180
• 120/180

Systolic pressure measures which of the following?

• atrial contraction
• atrial relaxation
• ventricular contraction
• ventricular relaxation