(a(i))[3]
State the names of three structures found in a mammalian heart.
(a(ii))[3]
Describe how a vein's structure differs from that of an artery.
(a(iii))[1]
State the function of arteries in the human circulatory system.
(b(i))[1]
Label one red blood cell on Fig. 6.1 by using a label line and the letter X.
(b(ii))[1]
State the name of one other kind of blood cell in Fig. 6.1.
(b(iii))[2]
State the names of two other blood components.
(c(i))[3]
State three risk factors for CHD.
(c(ii))[1]
State the name of the blood vessel that is blocked in CHD.