http://www.anasimtiaz.com/2008/09/22/contraction_and_expansion_of_heart/ Thu, 09 Feb 2012 11:22:20 +0000 hourly 1 http://wordpress.org/?v=3.1.4 http://www.anasimtiaz.com/2008/09/22/contraction_and_expansion_of_heart/comment-page-1/#comment-758 sas Sun, 05 Oct 2008 06:28:05 +0000 http://blog.anasimtiaz.com/?p=506#comment-758 Really? We really are not aware of how the heart contacts and expands??? I thought it was a well researched and understood area...Isn't it the case that the heart muscles contract and expand due to electrical impulses that travel down certain conduction pathways spread across the heart? And isn't every other muscle in our body work on the same principle? Whats the mystery? Can you elaborate please :)? Really? We really are not aware of how the heart contacts and expands??? I thought it was a well researched and understood area…Isn’t it the case that the heart muscles contract and expand due to electrical impulses that travel down certain conduction pathways spread across the heart? And isn’t every other muscle in our body work on the same principle? Whats the mystery? Can you elaborate please ?

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