Heart Sounds
Medical Dictionary
-> Heart Sounds
Search:
Heart Sounds
The sounds heard over the cardiac region produced by the functioning of the heart. There are four distinct sounds: the first occurs at the beginning of SYSTOLE and is heard as a "lubb" sound; the second is produced by the closing of the AORTIC VALVE and PULMONARY VALVE and is heard as a "dupp" sound; the third is produced by vibrations of the ventricular walls when suddenly distended by the rush of blood from the HEART ATRIA; and the fourth is produced by atrial contraction and ventricular filling.
© MedicalDictionaryweb.com 2012 |
Contact Us
|
Terms of Use
|
Teeth Whitening
|
Low Carb Foods and Diets