TEST 12 REVIEW. Mrs. Chustz—Biology II The Circulatory System. A) increased circulation to the heart B) larger muscles C) a narrowing of the inner walls of the coronary arteries due to buildup of fatty materials.
Mrs. Chustz—Biology II
The Circulatory System
When valves do not close completely, a harmless sound can occur. This can also occur if there is a hole in the septum of the heart. HEART MURMUR