What causes the aorta to narrow?

Related questions

1. How do you clear blocked Eustachian tubes?
2. Why does aortic stenosis cause systolic murmur?
3. How does squatting affect preload?
4. Does aortic stenosis cause bradycardia?
5. Why does hand grip decreased aortic stenosis murmur?
6. What murmur increases with squatting?
7. Is aortic stenosis serious?
8. Can you live with aortic stenosis?
9. Why does aortic stenosis murmur increases with squatting?
10. Is aortic calcification serious?

Tags

1. #aorta
2. #occur
3. #valve
4. #stenosis
5. #enlarge
6. #heart
7. #cause
8. #causes
9. #including
10. #blood
11. #onward
12. #amount
13. #sufficient
14. #thicken
15. #aortic
16. #narrowed
17. #congenital
18. #harder
19. #ventricle
20. #defect