d. Haemosiderin-containing macrophages in the alveoli
e. Progressive oedematous widening of alveolar septa
38. Pertaining to ischaemic heart disease:
a. Coronary atherosclerosis begins to form in middle age
b. 50% of people with this condition have underlying atherosclerotic
plaques
c. acute myocardial infarction occurs mostly by embolus occluding the
artery
d. Prinzmetal angina occurs due to coronary artery spasm
e. Subendocardial infarcts always occur from reduced systemic blood
pressure
39. Regarding macroscopic changes in myocardial infarcts:
a. Changes may be accentuated as early as 1-2 hours by histochemical
stains
b. By 18-24 hours infarcted tissue becomes dark and swollen
c. In the first week, the lesion becomes sharply defined, yellow and soft
d. At four days, a rim of hyperaemic granulation tissue appears
e. A fibrous scar is well established at two weeks
Answers Heart
1. a
2. a
3. a
4. e
5. d
6. d
7. c
8. a?d?
9. c
10. d
11. c
12. d
13. e
14. d
15. d
16. d