In which disease does acute chest pain appear when not enough oxygen is reaching the heart muscle?

Briefly describe the following (Any four):
$(a)$ Anaemia $(b)$ Angina Pectoris $(c)$ Atherosclerosis $(d)$ Hypertension $(e)$ Heart failure $(f)$ Erythroblastosis foetalis

Thickening of arteries due to cholesterol deposition is known as:

In the elderly,the heart has to pump blood with more force due to.......

Give information about diseases related to blood circulation.

Blood cancer is the excess production of leucocytes. It is known as: