veins, arteries and capillaries are all called blood vessels or blood streams.
They are called blood vessels.
plmonary veins begin as capillaries and end as capillaries
the three blood vessels are the Veins capillaries Arteries the arteries.
Capillaries are the structures that connect arteries to veins.
Arteries, capillaries, & veins.
Capillaries are smaller, thinner and have less surface area than veins. Veins take blood to the heart, and capillaries are the thin tubes that connect the veins and arteries together.
Arteries, veins, capillaries.
Capillaries. They are the microscopic tubes that connect the veins and the arteries.
Capillaries
Venules, they are smaller and thinner than veins.
Pulmonary veins
The veins carry blood toward the capillaries.