Homework Help: health

Posted by joy on Saturday, June 25, 2011 at 1:18pm.

What action makes the sound of the heart beating?

Answer : lab dub .Is it right?

health - Ms. Sue, Saturday, June 25, 2011 at 1:20pm
No. Watch and listen to this site.

http://www.nhlbi.nih.gov/health/dci/Diseases/hhw/hhw_pumping.html
health - joy, Saturday, June 25, 2011 at 1:28pm
Closing of valves
health - Ms. Sue, Saturday, June 25, 2011 at 1:31pm
Right.

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