Capillaries connect the smallest branches of arteries and veins The walls of capillaries are just one cell thick. Capillaries therefore allow the exchange of molecules between the blood and the body's cells - molecules can diffuse across their walls. This exchange of molecules is not possible across the walls of other types of blood vessel.
capillaries.
In a frog's circulatory system, the connection between arteries and veins is made through small blood vessels called capillaries. These capillaries allow for the exchange of oxygen and nutrients between the arteries and veins.
Veins, capillaries and arteries is that they are all stops for blood.
the three blood vessels are the Veins capillaries Arteries the arteries.
Capillaries.
Capillaries are bridges between the arterys and veins
Capillaries are the structures that connect arteries to veins.
Arteries, capillaries, & veins.
Venules, they are smaller and thinner than veins.
Arteries, capillaries, and veins. Arteries take blood away from the heart. Veins return blood to the heart. Capillaries are between the arteries and veins and supply the cells with oxygen and nutrients.
Arteries, veins, capillaries.
Capillaries. They are the microscopic tubes that connect the veins and the arteries.