#1
Which blood vessel carries oxygenated blood away from the heart?
#2
Which blood vessel connects arteries to veins in the smallest vessels of the circulatory system?
#3
Which part of the heart pumps oxygenated blood to the rest of the body?
#4
In which vascular structure does the exchange of oxygen, nutrients, and waste products occur?
#5
In which blood vessels do you find valves to prevent the backflow of blood?
#6
What is the largest artery in the human body?
#7
Which layer of a blood vessel provides structural support and flexibility?
#8
What is the primary function of venous valves in the circulatory system?
#9
What is the function of the lymphatic system in relation to the vascular system?
#10
Which vessel carries deoxygenated blood from the upper part of the body to the right atrium?
#11
What is the purpose of the circle of Willis in the brain?
#12
Which hormone is responsible for regulating blood calcium levels?
#13
What is the purpose of vasoconstriction in the vascular system?
#14
What is the primary role of the endothelium in blood vessels?
#15