Which of the following statements are not correct for disorders of circulatory system ?
(i) If repeated checks of blood pressure of an individual is 140/90 (140 over 90) or higher, it shows hypertension.
(ii) High blood pressure leads to heart diseases and also affects vital organs like brain and kidney.
(iii) Coronary artery disease, often referred to as atherosclerosis, affects the vessels that supply blood to the heart muscle.
(iv) Atherosclerosis is caused by deposits of calcium, fat, cholesterol and fibrous tissues, which makes the lumen of arteries narrower.
(v) Angina or angina pectoris is acute chest pain which appears when no enough oxygen is ching the heart muscle.
(vi) Angina can occur in men and women of any age but it is more common among the middle-aged and elderly.
(vii) Heart failure is same as cardiac arrest or a heart attack.