(a)[2]
Arteries are one kind of blood vessel. State two structural features of arteries.
(b)[1]
Capillaries are another form of blood vessel. State one function of capillaries.
(c)[1]
State the name of the structures in veins that prevent blood flowing backwards.
(d(i))[1]
On Fig. 1.1, draw arrows showing the direction of blood flow to and from the lungs.
(d(ii))[2]
State the names of blood vessel X and organ Y in Fig. 1.1.
(e)[1]
State the name of the blood vessel that carries oxygenated blood to the kidney.