Circulatory System

What are the smallest blood vessels?

How many layers are arteries and veins made up of?

What organ plays a role in lymphocyte production and the destruction of red blood cells?

Where is the aortic bifurcation located?

What organ is located in the upper thorax and neck and helps to fight infections?

What is the main function of leukocytes (white blood cells)?

What are the 3 types of granular leukocytes?

What carries oxygen to the lungs to cells in the body?

What initiates the clotting mechanism in blood?

What carries blood to the heart?