Briefly describe the followings:

a. Anaemia is a disorder that occurs due to the lesser count of RBC or a reduced amount of haemoglobin than the normal value.

b. Angina Pectoris is caused when adequate oxygen does not reach the heart muscles leading to chest pain and discomfort.

c. Atherosclerosis is the cause of disease when the fat takes place at the walls of the artery.

d. Hypertension is the condition in which there is a constant increase in normal blood pressure, which is 120/80 mm Hg.

e. Heart failure is a serious condition when the heart fails to pump enough blood to meet the requirements.

f. Erythroblastosis foetal is a condition there is a destruction of foetal RBC’s due to an incompatibility between the mother and foetus’s Rh factor